221999952627371 has 2 divisors, whose sum is σ = 221999952627372. Its totient is φ = 221999952627370.

The previous prime is 221999952627367. The next prime is 221999952627419. The reversal of 221999952627371 is 173726259999122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221999952627371 - 2² = 221999952627367 is a prime.

It is not a weakly prime, because it can be changed into another prime (221999952627331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110999976313685 + 110999976313686.

It is an arithmetic number, because the mean of its divisors is an integer number (110999976313686).

Almost surely, 2^{221999952627371} is an apocalyptic number.

221999952627371 is a deficient number, since it is larger than the sum of its proper divisors (1).

221999952627371 is an equidigital number, since it uses as much as digits as its factorization.

221999952627371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 462944160, while the sum is 74.

The spelling of 221999952627371 in words is "two hundred twenty-one trillion, nine hundred ninety-nine billion, nine hundred fifty-two million, six hundred twenty-seven thousand, three hundred seventy-one".