1220131042 has 32 divisors (see below), whose sum is σ = 2009774592. Its totient is φ = 552157824.

The previous prime is 1220131039. The next prime is 1220131043. The reversal of 1220131042 is 2401310221.

It is not an unprimeable number, because it can be changed into a prime (1220131043) 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, 293583 + ... + 297709.

It is an arithmetic number, because the mean of its divisors is an integer number (62805456).

Almost surely, 2^1220131042 is an apocalyptic number.

1220131042 is a deficient number, since it is larger than the sum of its proper divisors (789643550).

1220131042 is a wasteful number, since it uses less digits than its factorization.

1220131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1220131042 is about 34930.3742035496. The cubic root of 1220131042 is about 1068.5679862308.

Adding to 1220131042 its reverse (2401310221), we get a palindrome (3621441263).

The spelling of 1220131042 in words is "one billion, two hundred twenty million, one hundred thirty-one thousand, forty-two".