20022112221102 has 48 divisors (see below), whose sum is σ = 45853945771920. Its totient is φ = 6296536684800.

The previous prime is 20022112221053. The next prime is 20022112221119. The reversal of 20022112221102 is 20112221122002.

It is a happy number.

20022112221102 is a `hidden beast` number, since 200 + 221 + 12 + 221 + 10 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121378549 + ... + 121543392.

It is an arithmetic number, because the mean of its divisors is an integer number (955290536915).

Almost surely, 2^{20022112221102} is an apocalyptic number.

20022112221102 is an abundant number, since it is smaller than the sum of its proper divisors (25831833550818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20022112221102 is a wasteful number, since it uses less digits than its factorization.

20022112221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242922209 (or 242922206 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20022112221102 its reverse (20112221122002), we get a palindrome (40134333343104).

The spelling of 20022112221102 in words is "twenty trillion, twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred two".