1270220087 has 2 divisors, whose sum is σ = 1270220088. Its totient is φ = 1270220086.

The previous prime is 1270220069. The next prime is 1270220117. The reversal of 1270220087 is 7800220721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1270220087 - 2⁸ = 1270219831 is a prime.

It is a super-2 number, since 2×1270220087² = 3226918138836575138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270222087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635110043 + 635110044.

It is an arithmetic number, because the mean of its divisors is an integer number (635110044).

Almost surely, 2^1270220087 is an apocalyptic number.

1270220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270220087 is an equidigital number, since it uses as much as digits as its factorization.

1270220087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1270220087 is about 35640.1471237143. The cubic root of 1270220087 is about 1082.9946854614.

The spelling of 1270220087 in words is "one billion, two hundred seventy million, two hundred twenty thousand, eighty-seven".