100222121010021 has 32 divisors (see below), whose sum is σ = 135953488957440. Its totient is φ = 65653741944000.

The previous prime is 100222121010001. The next prime is 100222121010029. The reversal of 100222121010021 is 120010121222001.

It is not a de Polignac number, because 100222121010021 - 2⁹ = 100222121009509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222121010029) 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, 5549081331 + ... + 5549099391.

It is an arithmetic number, because the mean of its divisors is an integer number (4248546529920).

Almost surely, 2^{100222121010021} is an apocalyptic number.

It is an amenable number.

100222121010021 is a deficient number, since it is larger than the sum of its proper divisors (35731367947419).

100222121010021 is a wasteful number, since it uses less digits than its factorization.

100222121010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30017.

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

Adding to 100222121010021 its reverse (120010121222001), we get a palindrome (220232242232022).

The spelling of 100222121010021 in words is "one hundred trillion, two hundred twenty-two billion, one hundred twenty-one million, ten thousand, twenty-one".