920021000112001 has 4 divisors (see below), whose sum is σ = 941416837323952. Its totient is φ = 898625162900052.

The previous prime is 920021000111999. The next prime is 920021000112043. The reversal of 920021000112001 is 100211000120029.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 920021000112001 - 2¹ = 920021000111999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920021000112001.

It is not an unprimeable number, because it can be changed into a prime (920021000113001) 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, 10697918605911 + ... + 10697918605996.

It is an arithmetic number, because the mean of its divisors is an integer number (235354209330988).

Almost surely, 2^{920021000112001} is an apocalyptic number.

It is an amenable number.

920021000112001 is a deficient number, since it is larger than the sum of its proper divisors (21395837211951).

920021000112001 is a wasteful number, since it uses less digits than its factorization.

920021000112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21395837211950.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 920021000112001 in words is "nine hundred twenty trillion, twenty-one billion, one hundred twelve thousand, one".