22021000222 has 16 divisors (see below), whose sum is σ = 35609060592. Its totient is φ = 10153059840.

The previous prime is 22021000187. The next prime is 22021000231. The reversal of 22021000222 is 22200012022.

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 7 ways as a sum of consecutive naturals, for example, 410883 + ... + 461374.

It is an arithmetic number, because the mean of its divisors is an integer number (2225566287).

Almost surely, 2^22021000222 is an apocalyptic number.

22021000222 is a deficient number, since it is larger than the sum of its proper divisors (13588060370).

22021000222 is a wasteful number, since it uses less digits than its factorization.

22021000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873243.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22021000222 its reverse (22200012022), we get a palindrome (44221012244).

The spelling of 22021000222 in words is "twenty-two billion, twenty-one million, two hundred twenty-two", and thus it is an aban number.