1012202156 has 12 divisors (see below), whose sum is σ = 2024404368. Its totient is φ = 433800912.

The previous prime is 1012202119. The next prime is 1012202179. The reversal of 1012202156 is 6512022101.

1012202156 is an admirable number.

It is a super-2 number, since 2×1012202156² = 2049106409222096672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18075011 + ... + 18075066.

It is an arithmetic number, because the mean of its divisors is an integer number (168700364).

Almost surely, 2^1012202156 is an apocalyptic number.

It is an amenable number.

1012202156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1012202156 is a wasteful number, since it uses less digits than its factorization.

1012202156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36150088 (or 36150086 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1012202156 is about 31815.1246422201. The cubic root of 1012202156 is about 1004.0509529545.

Adding to 1012202156 its reverse (6512022101), we get a palindrome (7524224257).

The spelling of 1012202156 in words is "one billion, twelve million, two hundred two thousand, one hundred fifty-six".