210100021222 has 64 divisors (see below), whose sum is σ = 402314572800. Its totient is φ = 80037901440.

The previous prime is 210100021217. The next prime is 210100021237. The reversal of 210100021222 is 222120001012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1947847 + ... + 2052877.

It is an arithmetic number, because the mean of its divisors is an integer number (6286165200).

Almost surely, 2^210100021222 is an apocalyptic number.

210100021222 is a deficient number, since it is larger than the sum of its proper divisors (192214551578).

210100021222 is a wasteful number, since it uses less digits than its factorization.

210100021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105461.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210100021222 its reverse (222120001012), we get a palindrome (432220022234).

The spelling of 210100021222 in words is "two hundred ten billion, one hundred million, twenty-one thousand, two hundred twenty-two".