1220697610 has 48 divisors (see below), whose sum is σ = 2456244000. Its totient is φ = 436340960.

The previous prime is 1220697559. The next prime is 1220697619. The reversal of 1220697610 is 167960221.

It is not an unprimeable number, because it can be changed into a prime (1220697619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62841 + ... + 79939.

It is an arithmetic number, because the mean of its divisors is an integer number (51171750).

Almost surely, 2^1220697610 is an apocalyptic number.

1220697610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220697610 is an abundant number, since it is smaller than the sum of its proper divisors (1235546390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220697610 is a wasteful number, since it uses less digits than its factorization.

1220697610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17187 (or 17176 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1220697610 is about 34938.4832240897. The cubic root of 1220697610 is about 1068.7333571956.

The spelling of 1220697610 in words is "one billion, two hundred twenty million, six hundred ninety-seven thousand, six hundred ten".