21222676574 has 32 divisors (see below), whose sum is σ = 35551802880. Its totient is φ = 9418046400.

The previous prime is 21222676571. The next prime is 21222676603. The reversal of 21222676574 is 47567622212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222676571) 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, 3032219 + ... + 3039209.

It is an arithmetic number, because the mean of its divisors is an integer number (1110993840).

Almost surely, 2^21222676574 is an apocalyptic number.

21222676574 is a deficient number, since it is larger than the sum of its proper divisors (14329126306).

21222676574 is a wasteful number, since it uses less digits than its factorization.

21222676574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256.

The product of its digits is 564480, while the sum is 44.

It can be divided in two parts, 21222 and 676574, that added together give a palindrome (697796).

The spelling of 21222676574 in words is "twenty-one billion, two hundred twenty-two million, six hundred seventy-six thousand, five hundred seventy-four".