21221121120094 has 16 divisors (see below), whose sum is σ = 36379681819488. Its totient is φ = 9094611933792.

The previous prime is 21221121120037. The next prime is 21221121120139. The reversal of 21221121120094 is 49002112112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11998197 + ... + 13652800.

It is an arithmetic number, because the mean of its divisors is an integer number (2273730113718).

Almost surely, 2^{21221121120094} is an apocalyptic number.

21221121120094 is a deficient number, since it is larger than the sum of its proper divisors (15158560699394).

21221121120094 is a wasteful number, since it uses less digits than its factorization.

21221121120094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25710099.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 21221121120094 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, ninety-four".