1220175142 has 16 divisors (see below), whose sum is σ = 1865691792. Its totient is φ = 598391200.

The previous prime is 1220175127. The next prime is 1220175157. The reversal of 1220175142 is 2415710221.

It is an interprime number because it is at equal distance from previous prime (1220175127) and next prime (1220175157).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6613 + ... + 49840.

It is an arithmetic number, because the mean of its divisors is an integer number (116605737).

Almost surely, 2^1220175142 is an apocalyptic number.

1220175142 is a deficient number, since it is larger than the sum of its proper divisors (645516650).

1220175142 is a wasteful number, since it uses less digits than its factorization.

1220175142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56663.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1220175142 is about 34931.0054536081. The cubic root of 1220175142 is about 1068.5808600613.

Adding to 1220175142 its reverse (2415710221), we get a palindrome (3635885363).

The spelling of 1220175142 in words is "one billion, two hundred twenty million, one hundred seventy-five thousand, one hundred forty-two".