1220272132 has 6 divisors (see below), whose sum is σ = 2135476238. Its totient is φ = 610136064.

The previous prime is 1220272037. The next prime is 1220272171. The reversal of 1220272132 is 2312720221.

It can be written as a sum of positive squares in only one way, i.e., 1190526016 + 29746116 = 34504^2 + 5454^2 .

It is a super-2 number, since 2×1220272132² = 2978128152271650848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152534013 + ... + 152534020.

Almost surely, 2^1220272132 is an apocalyptic number.

It is an amenable number.

1220272132 is a deficient number, since it is larger than the sum of its proper divisors (915204106).

1220272132 is a wasteful number, since it uses less digits than its factorization.

1220272132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305068037 (or 305068035 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1220272132 is about 34932.3937341832. The cubic root of 1220272132 is about 1068.6091726392.

Adding to 1220272132 its reverse (2312720221), we get a palindrome (3532992353).

The spelling of 1220272132 in words is "one billion, two hundred twenty million, two hundred seventy-two thousand, one hundred thirty-two".