21342227274 has 32 divisors (see below), whose sum is σ = 48436266240. Its totient is φ = 6962711616.

The previous prime is 21342227237. The next prime is 21342227279. The reversal of 21342227274 is 47272224312.

21342227274 is a `hidden beast` number, since 21 + 342 + 2 + 27 + 274 = 666.

It is not an unprimeable number, because it can be changed into a prime (21342227279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4201999 + ... + 4207074.

It is an arithmetic number, because the mean of its divisors is an integer number (1513633320).

Almost surely, 2^21342227274 is an apocalyptic number.

21342227274 is an abundant number, since it is smaller than the sum of its proper divisors (27094038966).

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

21342227274 is a wasteful number, since it uses less digits than its factorization.

21342227274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409131 (or 8409125 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The spelling of 21342227274 in words is "twenty-one billion, three hundred forty-two million, two hundred twenty-seven thousand, two hundred seventy-four".