100202212201021 has 32 divisors (see below), whose sum is σ = 123075967472640. Its totient is φ = 79675492748544.

The previous prime is 100202212200989. The next prime is 100202212201033. The reversal of 100202212201021 is 120102212202001.

It is a happy number.

It is not a de Polignac number, because 100202212201021 - 2⁵ = 100202212200989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100202212200986 and 100202212201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100202212204021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38916795 + ... + 41411608.

It is an arithmetic number, because the mean of its divisors is an integer number (3846123983520).

Almost surely, 2^{100202212201021} is an apocalyptic number.

It is an amenable number.

100202212201021 is a deficient number, since it is larger than the sum of its proper divisors (22873755271619).

100202212201021 is a wasteful number, since it uses less digits than its factorization.

100202212201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80328625.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100202212201021 its reverse (120102212202001), we get a palindrome (220304424403022).

The spelling of 100202212201021 in words is "one hundred trillion, two hundred two billion, two hundred twelve million, two hundred one thousand, twenty-one".