21222726150 has 24 divisors (see below), whose sum is σ = 52632361224. Its totient is φ = 5659393600.

The previous prime is 21222726149. The next prime is 21222726163. The reversal of 21222726150 is 5162722212.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 70742271 + ... + 70742570.

It is an arithmetic number, because the mean of its divisors is an integer number (2193015051).

Almost surely, 2^21222726150 is an apocalyptic number.

21222726150 is an abundant number, since it is smaller than the sum of its proper divisors (31409635074).

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

21222726150 is a wasteful number, since it uses less digits than its factorization.

21222726150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141484856 (or 141484851 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

It can be divided in two parts, 2122 and 2726150, that added together give a palindrome (2728272).

The spelling of 21222726150 in words is "twenty-one billion, two hundred twenty-two million, seven hundred twenty-six thousand, one hundred fifty".