20221242102 has 24 divisors (see below), whose sum is σ = 43854418920. Its totient is φ = 6733994400.

The previous prime is 20221242101. The next prime is 20221242149. The reversal of 20221242102 is 20124212202.

20221242102 is a `hidden beast` number, since 20 + 221 + 2 + 421 + 0 + 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 not an unprimeable number, because it can be changed into a prime (20221242101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515527 + ... + 553362.

It is an arithmetic number, because the mean of its divisors is an integer number (1827267455).

Almost surely, 2^20221242102 is an apocalyptic number.

20221242102 is an abundant number, since it is smaller than the sum of its proper divisors (23633176818).

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

20221242102 is a wasteful number, since it uses less digits than its factorization.

20221242102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069948 (or 1069945 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20221242102 its reverse (20124212202), we get a palindrome (40345454304).

It can be divided in two parts, 20 and 221242102, that added together give a palindrome (221242122).

The spelling of 20221242102 in words is "twenty billion, two hundred twenty-one million, two hundred forty-two thousand, one hundred two".