2202022201991 has 2 divisors, whose sum is σ = 2202022201992. Its totient is φ = 2202022201990.

The previous prime is 2202022201949. The next prime is 2202022202033. The reversal of 2202022201991 is 1991022202022.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2202022201949) and next prime (2202022202033).

It is a cyclic number.

It is not a de Polignac number, because 2202022201991 - 2¹⁸ = 2202021939847 is a prime.

It is a super-2 number, since 2×2202022201991² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2202022201921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101011100995 + 1101011100996.

It is an arithmetic number, because the mean of its divisors is an integer number (1101011100996).

Almost surely, 2^{2202022201991} is an apocalyptic number.

2202022201991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202022201991 is an equidigital number, since it uses as much as digits as its factorization.

2202022201991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 2202022201991 in words is "two trillion, two hundred two billion, twenty-two million, two hundred one thousand, nine hundred ninety-one".