1297222231 has 8 divisors (see below), whose sum is σ = 1326746304. Its totient is φ = 1267778400.

The previous prime is 1297222219. The next prime is 1297222253. The reversal of 1297222231 is 1322227921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1297222231 - 2⁹ = 1297221719 is a prime.

It is a super-2 number, since 2×1297222231² = 3365571033201234722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1297222193 and 1297222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297222211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13261 + ... + 52633.

It is an arithmetic number, because the mean of its divisors is an integer number (165843288).

Almost surely, 2^1297222231 is an apocalyptic number.

1297222231 is a deficient number, since it is larger than the sum of its proper divisors (29524073).

1297222231 is an equidigital number, since it uses as much as digits as its factorization.

1297222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40121.

The product of its digits is 6048, while the sum is 31.

The square root of 1297222231 is about 36016.9714301466. The cubic root of 1297222231 is about 1090.6149858397.

The spelling of 1297222231 in words is "one billion, two hundred ninety-seven million, two hundred twenty-two thousand, two hundred thirty-one".