21354623602022 has 16 divisors (see below), whose sum is σ = 32127337722480. Its totient is φ = 10645528008672.

The previous prime is 21354623602003. The next prime is 21354623602073. The reversal of 21354623602022 is 22020632645312.

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, 1727072 + ... + 6759587.

It is an arithmetic number, because the mean of its divisors is an integer number (2007958607655).

Almost surely, 2^{21354623602022} is an apocalyptic number.

21354623602022 is a deficient number, since it is larger than the sum of its proper divisors (10772714120458).

21354623602022 is a wasteful number, since it uses less digits than its factorization.

21354623602022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490407.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 21354623602022 in words is "twenty-one trillion, three hundred fifty-four billion, six hundred twenty-three million, six hundred two thousand, twenty-two".