19975701190221 has 336 divisors, whose sum is σ = 36275808890880. Its totient is φ = 10956443097600.

The previous prime is 19975701190217. The next prime is 19975701190231. The reversal of 19975701190221 is 12209110757991.

19975701190221 is a `hidden beast` number, since 199 + 75 + 70 + 11 + 90 + 221 = 666.

It is not a de Polignac number, because 19975701190221 - 2² = 19975701190217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19975701190231) by changing a digit.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 17355082996 + ... + 17355084146.

Almost surely, 2^{19975701190221} is an apocalyptic number.

It is an amenable number.

19975701190221 is a deficient number, since it is larger than the sum of its proper divisors (16300107700659).

19975701190221 is a wasteful number, since it uses less digits than its factorization.

19975701190221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 54.

The spelling of 19975701190221 in words is "nineteen trillion, nine hundred seventy-five billion, seven hundred one million, one hundred ninety thousand, two hundred twenty-one".