100032012121220 has 24 divisors (see below), whose sum is σ = 210084336601944. Its totient is φ = 40009545582336.

The previous prime is 100032012121189. The next prime is 100032012121231. The reversal of 100032012121220 is 22121210230001.

It can be written as a sum of positive squares in 4 ways, for example, as 11650917262336 + 88381094858884 = 3413344^2 + 9401122^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203452457 + ... + 203943536.

It is an arithmetic number, because the mean of its divisors is an integer number (8753514025081).

Almost surely, 2^{100032012121220} is an apocalyptic number.

100032012121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100032012121220 is an abundant number, since it is smaller than the sum of its proper divisors (110052324480724).

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

100032012121220 is a wasteful number, since it uses less digits than its factorization.

100032012121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407408279 (or 407408277 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 100032012121220 its reverse (22121210230001), we get a palindrome (122153222351221).

The spelling of 100032012121220 in words is "one hundred trillion, thirty-two billion, twelve million, one hundred twenty-one thousand, two hundred twenty".