1202255881 has 2 divisors, whose sum is σ = 1202255882. Its totient is φ = 1202255880.

The previous prime is 1202255807. The next prime is 1202255983. The reversal of 1202255881 is 1885522021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030410000 + 171845881 = 32100^2 + 13109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202255881 - 2²⁵ = 1168701449 is a prime.

It is a super-2 number, since 2×1202255881² = 2890838406798172322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1202255081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601127940 + 601127941.

It is an arithmetic number, because the mean of its divisors is an integer number (601127941).

Almost surely, 2^1202255881 is an apocalyptic number.

It is an amenable number.

1202255881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202255881 is an equidigital number, since it uses as much as digits as its factorization.

1202255881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1202255881 is about 34673.5617005234. The cubic root of 1202255881 is about 1063.3240499206.

The spelling of 1202255881 in words is "one billion, two hundred two million, two hundred fifty-five thousand, eight hundred eighty-one".