20201200219979 has 8 divisors (see below), whose sum is σ = 20689501438320. Its totient is φ = 19713740177376.

The previous prime is 20201200219973. The next prime is 20201200219997. The reversal of 20201200219979 is 97991200210202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201200219979 - 2²⁰ = 20201199171403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201200219973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210245324 + ... + 210341385.

It is an arithmetic number, because the mean of its divisors is an integer number (2586187679790).

Almost surely, 2^{20201200219979} is an apocalyptic number.

20201200219979 is a deficient number, since it is larger than the sum of its proper divisors (488301218341).

20201200219979 is a wasteful number, since it uses less digits than its factorization.

20201200219979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420587869.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 20201200219979 in words is "twenty trillion, two hundred one billion, two hundred million, two hundred nineteen thousand, nine hundred seventy-nine".