21020122094 has 16 divisors (see below), whose sum is σ = 31975864128. Its totient is φ = 10361624832.

The previous prime is 21020122093. The next prime is 21020122129. The reversal of 21020122094 is 49022102012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020122093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323099 + ... + 382665.

It is an arithmetic number, because the mean of its divisors is an integer number (1998491508).

Almost surely, 2^21020122094 is an apocalyptic number.

21020122094 is a deficient number, since it is larger than the sum of its proper divisors (10955742034).

21020122094 is a wasteful number, since it uses less digits than its factorization.

21020122094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62059.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 21020122094 in words is "twenty-one billion, twenty million, one hundred twenty-two thousand, ninety-four".