21022132294 has 8 divisors (see below), whose sum is σ = 32302300968. Its totient is φ = 10254698640.

The previous prime is 21022132283. The next prime is 21022132301. The reversal of 21022132294 is 49223122012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128183652 + ... + 128183815.

It is an arithmetic number, because the mean of its divisors is an integer number (4037787621).

Almost surely, 2^21022132294 is an apocalyptic number.

21022132294 is a deficient number, since it is larger than the sum of its proper divisors (11280168674).

21022132294 is a wasteful number, since it uses less digits than its factorization.

21022132294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256367510.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 21022132294 in words is "twenty-one billion, twenty-two million, one hundred thirty-two thousand, two hundred ninety-four".