210221111100022 has 64 divisors (see below), whose sum is σ = 366620493411648. Its totient is φ = 89345551360000.

The previous prime is 210221111099977. The next prime is 210221111100029. The reversal of 210221111100022 is 220001111122012.

It is a junction number, because it is equal to n+sod(n) for n = 210221111099969 and 210221111100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221111100029) 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, 82928622 + ... + 85425982.

It is an arithmetic number, because the mean of its divisors is an integer number (5728445209557).

Almost surely, 2^{210221111100022} is an apocalyptic number.

210221111100022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210221111100022 is a deficient number, since it is larger than the sum of its proper divisors (156399382311626).

210221111100022 is a wasteful number, since it uses less digits than its factorization.

210221111100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498865.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210221111100022 its reverse (220001111122012), we get a palindrome (430222222222034).

The spelling of 210221111100022 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred eleven million, one hundred thousand, twenty-two".