21352525201192 has 16 divisors (see below), whose sum is σ = 40050655362900. Its totient is φ = 10672350437760.

The previous prime is 21352525201181. The next prime is 21352525201193. The reversal of 21352525201192 is 29110252525312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21220708280836 + 131816920356 = 4606594^2 + 363066^2 .

It is not an unprimeable number, because it can be changed into a prime (21352525201193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488997159 + ... + 489040822.

Almost surely, 2^{21352525201192} is an apocalyptic number.

It is an amenable number.

21352525201192 is a deficient number, since it is larger than the sum of its proper divisors (18698130161708).

21352525201192 is a wasteful number, since it uses less digits than its factorization.

21352525201192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978040716 (or 978040712 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 21352525201192 in words is "twenty-one trillion, three hundred fifty-two billion, five hundred twenty-five million, two hundred one thousand, one hundred ninety-two".