21602350741012 has 6 divisors (see below), whose sum is σ = 37804113796778. Its totient is φ = 10801175370504.

The previous prime is 21602350741007. The next prime is 21602350741021. The reversal of 21602350741012 is 21014705320612.

It can be written as a sum of positive squares in only one way, i.e., 18986969619216 + 2615381121796 = 4357404^2 + 1617214^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2700293842623 + ... + 2700293842630.

Almost surely, 2^{21602350741012} is an apocalyptic number.

It is an amenable number.

21602350741012 is a deficient number, since it is larger than the sum of its proper divisors (16201763055766).

21602350741012 is a wasteful number, since it uses less digits than its factorization.

21602350741012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400587685257 (or 5400587685255 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 21602350741012 in words is "twenty-one trillion, six hundred two billion, three hundred fifty million, seven hundred forty-one thousand, twelve".