2022211993 has 2 divisors, whose sum is σ = 2022211994. Its totient is φ = 2022211992.

The previous prime is 2022211991. The next prime is 2022212011. The reversal of 2022211993 is 3991122202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1781093209 + 241118784 = 42203^2 + 15528^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022211993 - 2¹ = 2022211991 is a prime.

Together with 2022211991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2022211991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011105996 + 1011105997.

It is an arithmetic number, because the mean of its divisors is an integer number (1011105997).

Almost surely, 2^2022211993 is an apocalyptic number.

It is an amenable number.

2022211993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022211993 is an equidigital number, since it uses as much as digits as its factorization.

2022211993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2022211993 is about 44969.0114745699. The cubic root of 2022211993 is about 1264.5681149462.

The spelling of 2022211993 in words is "two billion, twenty-two million, two hundred eleven thousand, nine hundred ninety-three".