20102221022 has 32 divisors (see below), whose sum is σ = 32930422560. Its totient is φ = 9147657600.

The previous prime is 20102221001. The next prime is 20102221159. The reversal of 20102221022 is 22012220102.

It is a junction number, because it is equal to n+sod(n) for n = 20102220988 and 20102221006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089272 + ... + 1107572.

It is an arithmetic number, because the mean of its divisors is an integer number (1029075705).

Almost surely, 2^20102221022 is an apocalyptic number.

20102221022 is a deficient number, since it is larger than the sum of its proper divisors (12828201538).

20102221022 is a wasteful number, since it uses less digits than its factorization.

20102221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18908.

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

Adding to 20102221022 its reverse (22012220102), we get a palindrome (42114441124).

The spelling of 20102221022 in words is "twenty billion, one hundred two million, two hundred twenty-one thousand, twenty-two".