1220710137 has 16 divisors (see below), whose sum is σ = 1690476480. Its totient is φ = 782600000.

The previous prime is 1220710111. The next prime is 1220710147. The reversal of 1220710137 is 7310170221.

It is a cyclic number.

It is not a de Polignac number, because 1220710137 - 2⁷ = 1220710009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220710147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6114 + ... + 49787.

It is an arithmetic number, because the mean of its divisors is an integer number (105654780).

Almost surely, 2^1220710137 is an apocalyptic number.

It is an amenable number.

1220710137 is a deficient number, since it is larger than the sum of its proper divisors (469766343).

1220710137 is a wasteful number, since it uses less digits than its factorization.

1220710137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56184.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 1220710137 is about 34938.6624958655. The cubic root of 1220710137 is about 1068.7370130223.

Adding to 1220710137 its reverse (7310170221), we get a palindrome (8530880358).

The spelling of 1220710137 in words is "one billion, two hundred twenty million, seven hundred ten thousand, one hundred thirty-seven".