21227162350 has 24 divisors (see below), whose sum is σ = 39494726640. Its totient is φ = 8488240320.

The previous prime is 21227162339. The next prime is 21227162351. The reversal of 21227162350 is 5326172212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21227162351) 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, 101994 + ... + 229906.

It is an arithmetic number, because the mean of its divisors is an integer number (1645613610).

Almost surely, 2^21227162350 is an apocalyptic number.

21227162350 is a deficient number, since it is larger than the sum of its proper divisors (18267564290).

21227162350 is a wasteful number, since it uses less digits than its factorization.

21227162350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131244 (or 131239 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 21227162350 in words is "twenty-one billion, two hundred twenty-seven million, one hundred sixty-two thousand, three hundred fifty".