20101022222 has 24 divisors (see below), whose sum is σ = 32137164072. Its totient is φ = 9427230000.

The previous prime is 20101022191. The next prime is 20101022233. The reversal of 20101022222 is 22222010102.

It is a junction number, because it is equal to n+sod(n) for n = 20101022197 and 20101022206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64904 + ... + 210747.

It is an arithmetic number, because the mean of its divisors is an integer number (1339048503).

Almost surely, 2^20101022222 is an apocalyptic number.

20101022222 is a deficient number, since it is larger than the sum of its proper divisors (12036141850).

20101022222 is a wasteful number, since it uses less digits than its factorization.

20101022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275792 (or 275773 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20101022222 its reverse (22222010102), we get a palindrome (42323032324).

It can be divided in two parts, 2010102 and 2222, that multiplied together give a palindrome (4466446644).

The spelling of 20101022222 in words is "twenty billion, one hundred one million, twenty-two thousand, two hundred twenty-two".