920970021022211 has 4 divisors (see below), whose sum is σ = 920971327321752. Its totient is φ = 920968714722672.

The previous prime is 920970021022147. The next prime is 920970021022217. The reversal of 920970021022211 is 112220120079029.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 920970021022211 - 2⁶ = 920970021022147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920970021022217) 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, 652091666 + ... + 653502471.

It is an arithmetic number, because the mean of its divisors is an integer number (230242831830438).

Almost surely, 2^{920970021022211} is an apocalyptic number.

920970021022211 is a deficient number, since it is larger than the sum of its proper divisors (1306299541).

920970021022211 is a wasteful number, since it uses less digits than its factorization.

920970021022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306299540.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 920970021022211 in words is "nine hundred twenty trillion, nine hundred seventy billion, twenty-one million, twenty-two thousand, two hundred eleven".