10321102121220 has 144 divisors (see below), whose sum is σ = 34325091964800. Its totient is φ = 2489511974400.

The previous prime is 10321102121219. The next prime is 10321102121221. The reversal of 10321102121220 is 2212120112301.

10321102121220 is a `hidden beast` number, since 1 + 0 + 321 + 1 + 0 + 2 + 121 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (10321102121219) and next prime (10321102121221).

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 = 10321102121193 and 10321102121202.

It is not an unprimeable number, because it can be changed into a prime (10321102121221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12703161 + ... + 13491200.

It is an arithmetic number, because the mean of its divisors is an integer number (238368694200).

Almost surely, 2^{10321102121220} is an apocalyptic number.

10321102121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321102121220 is an abundant number, since it is smaller than the sum of its proper divisors (24003989843580).

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

10321102121220 is a wasteful number, since it uses less digits than its factorization.

10321102121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26194586 (or 26194581 counting only the distinct ones).

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

Adding to 10321102121220 its reverse (2212120112301), we get a palindrome (12533222233521).

The spelling of 10321102121220 in words is "ten trillion, three hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, two hundred twenty".