Search a number
-
+
10221321210120 = 23325411291536407
BaseRepresentation
bin1001010010111101011000…
…1110000100100100001000
31100012011000110010122010200
42110233112032010210020
52314431231212210440
633423335442412200
72103315603524616
oct224572616044410
940164013118120
1010221321210120
113290924398a29
121190b63961060
13591b357a5457
14274a00b786b6
1512ad30112c30
hex94bd6384908

10221321210120 has 192 divisors, whose sum is σ = 34055943143040. Its totient is φ = 2657140761600.

The previous prime is 10221321210109. The next prime is 10221321210131. The reversal of 10221321210120 is 2101212312201.

10221321210120 is a `hidden beast` number, since 1 + 0 + 221 + 321 + 2 + 1 + 0 + 120 = 666.

It is an interprime number because it is at equal distance from previous prime (10221321210109) and next prime (10221321210131).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10221321210093 and 10221321210102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18786957 + ... + 19323363.

It is an arithmetic number, because the mean of its divisors is an integer number (177374703870).

Almost surely, 210221321210120 is an apocalyptic number.

10221321210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221321210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17027971571520).

10221321210120 is an abundant number, since it is smaller than the sum of its proper divisors (23834621932920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221321210120 is a wasteful number, since it uses less digits than its factorization.

10221321210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537756 (or 537749 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 10221321210120 its reverse (2101212312201), we get a palindrome (12322533522321).

The spelling of 10221321210120 in words is "ten trillion, two hundred twenty-one billion, three hundred twenty-one million, two hundred ten thousand, one hundred twenty".