220131203033281 has 2 divisors, whose sum is σ = 220131203033282. Its totient is φ = 220131203033280.

The previous prime is 220131203033249. The next prime is 220131203033333. The reversal of 220131203033281 is 182330302131022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190144353232656 + 29986849800625 = 13789284^2 + 5476025^2 .

It is a cyclic number.

It is not a de Polignac number, because 220131203033281 - 2⁵ = 220131203033249 is a prime.

It is a super-2 number, since 2×220131203033281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220131203033201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110065601516640 + 110065601516641.

It is an arithmetic number, because the mean of its divisors is an integer number (110065601516641).

Almost surely, 2^{220131203033281} is an apocalyptic number.

It is an amenable number.

220131203033281 is a deficient number, since it is larger than the sum of its proper divisors (1).

220131203033281 is an equidigital number, since it uses as much as digits as its factorization.

220131203033281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 220131203033281 in words is "two hundred twenty trillion, one hundred thirty-one billion, two hundred three million, thirty-three thousand, two hundred eighty-one".