1220896231 has 2 divisors, whose sum is σ = 1220896232. Its totient is φ = 1220896230.

The previous prime is 1220896217. The next prime is 1220896241. The reversal of 1220896231 is 1326980221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220896231 - 2¹¹ = 1220894183 is a prime.

It is a super-2 number, since 2×1220896231² = 2981175213740010722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220896241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610448115 + 610448116.

It is an arithmetic number, because the mean of its divisors is an integer number (610448116).

Almost surely, 2^1220896231 is an apocalyptic number.

1220896231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220896231 is an equidigital number, since it uses as much as digits as its factorization.

1220896231 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 34.

The square root of 1220896231 is about 34941.3255472657. The cubic root of 1220896231 is about 1068.7913189639.

The spelling of 1220896231 in words is "one billion, two hundred twenty million, eight hundred ninety-six thousand, two hundred thirty-one".