21112222350 has 24 divisors (see below), whose sum is σ = 52358311800. Its totient is φ = 5629925920.

The previous prime is 21112222337. The next prime is 21112222379. The reversal of 21112222350 is 5322221112.

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, 70373925 + ... + 70374224.

It is an arithmetic number, because the mean of its divisors is an integer number (2181596325).

Almost surely, 2^21112222350 is an apocalyptic number.

21112222350 is an abundant number, since it is smaller than the sum of its proper divisors (31246089450).

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

21112222350 is a wasteful number, since it uses less digits than its factorization.

21112222350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140748164 (or 140748159 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21112222350 its reverse (5322221112), we get a palindrome (26434443462).

The spelling of 21112222350 in words is "twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, three hundred fifty".