21941932222 has 64 divisors (see below), whose sum is σ = 40214891520. Its totient is φ = 8769648384.

The previous prime is 21941932189. The next prime is 21941932253. The reversal of 21941932222 is 22223914912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15980328 + ... + 15981700.

It is an arithmetic number, because the mean of its divisors is an integer number (628357680).

Almost surely, 2^21941932222 is an apocalyptic number.

21941932222 is a deficient number, since it is larger than the sum of its proper divisors (18272959298).

21941932222 is a wasteful number, since it uses less digits than its factorization.

21941932222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297.

The product of its digits is 31104, while the sum is 37.

The spelling of 21941932222 in words is "twenty-one billion, nine hundred forty-one million, nine hundred thirty-two thousand, two hundred twenty-two".