202210201993 has 2 divisors, whose sum is σ = 202210201994. Its totient is φ = 202210201992.

The previous prime is 202210201969. The next prime is 202210202003. The reversal of 202210201993 is 399102012202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191027562489 + 11182639504 = 437067^2 + 105748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202210201993 is a prime.

It is a super-2 number, since 2×202210201993² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202210201913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101105100996 + 101105100997.

It is an arithmetic number, because the mean of its divisors is an integer number (101105100997).

Almost surely, 2^202210201993 is an apocalyptic number.

It is an amenable number.

202210201993 is a deficient number, since it is larger than the sum of its proper divisors (1).

202210201993 is an equidigital number, since it uses as much as digits as its factorization.

202210201993 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 spelling of 202210201993 in words is "two hundred two billion, two hundred ten million, two hundred one thousand, nine hundred ninety-three".