100000222021 has 32 divisors (see below), whose sum is σ = 116444160000. Its totient is φ = 84113842176.

The previous prime is 100000221991. The next prime is 100000222033. The reversal of 100000222021 is 120222000001.

It is not a de Polignac number, because 100000222021 - 2⁹ = 100000221509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100000221989 and 100000222007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000222061) 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, 80063605 + ... + 80064853.

It is an arithmetic number, because the mean of its divisors is an integer number (3638880000).

Almost surely, 2^100000222021 is an apocalyptic number.

It is an amenable number.

100000222021 is a deficient number, since it is larger than the sum of its proper divisors (16443937979).

100000222021 is a wasteful number, since it uses less digits than its factorization.

100000222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 100000222021 its reverse (120222000001), we get a palindrome (220222222022).

The spelling of 100000222021 in words is "one hundred billion, two hundred twenty-two thousand, twenty-one".