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10212011210220 = 22354737391110657
BaseRepresentation
bin1001010010011010101101…
…0011001111010111101100
31100011020222121201122012120
42110212223103033113230
52314303144332211340
633415155545032540
72102536105035021
oct224465323172754
940136877648176
1010212011210220
113287987113236
12118b1a5a85750
13590cb0a35881
1427439a509548
1512a987aee4d0
hex949ab4cf5ec

10212011210220 has 192 divisors, whose sum is σ = 29315187449856. Its totient is φ = 2654950072320.

The previous prime is 10212011210129. The next prime is 10212011210221. The reversal of 10212011210220 is 2201211021201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10212011210220.

It is not an unprimeable number, because it can be changed into a prime (10212011210221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 958239132 + ... + 958249788.

It is an arithmetic number, because the mean of its divisors is an integer number (152683267968).

Almost surely, 210212011210220 is an apocalyptic number.

10212011210220 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 10212011210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14657593724928).

10212011210220 is an abundant number, since it is smaller than the sum of its proper divisors (19103176239636).

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

10212011210220 is a wasteful number, since it uses less digits than its factorization.

10212011210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000 (or 11998 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10212011210220 its reverse (2201211021201), we get a palindrome (12413222231421).

The spelling of 10212011210220 in words is "ten trillion, two hundred twelve billion, eleven million, two hundred ten thousand, two hundred twenty".