21114040205250 has 96 divisors (see below), whose sum is σ = 57186425028096. Its totient is φ = 5621134557600.

The previous prime is 21114040205243. The next prime is 21114040205263. The reversal of 21114040205250 is 5250204041112.

It is a happy number.

21114040205250 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 4 + 0 + 402 + 0 + 5 + 250 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6364084 + ... + 9095583.

It is an arithmetic number, because the mean of its divisors is an integer number (595691927376).

Almost surely, 2^{21114040205250} is an apocalyptic number.

21114040205250 is an abundant number, since it is smaller than the sum of its proper divisors (36072384822846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21114040205250 is a wasteful number, since it uses less digits than its factorization.

21114040205250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15460297 (or 15460284 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 21114040205250 its reverse (5250204041112), we get a palindrome (26364244246362).

The spelling of 21114040205250 in words is "twenty-one trillion, one hundred fourteen billion, forty million, two hundred five thousand, two hundred fifty".