201220252012 has 48 divisors (see below), whose sum is σ = 385701916320. Its totient is φ = 91296235008.

The previous prime is 201220251997. The next prime is 201220252019. The reversal of 201220252012 is 210252022102.

It is not an unprimeable number, because it can be changed into a prime (201220252019) 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, 674983 + ... + 926305.

It is an arithmetic number, because the mean of its divisors is an integer number (8035456590).

Almost surely, 2^201220252012 is an apocalyptic number.

It is an amenable number.

201220252012 is a deficient number, since it is larger than the sum of its proper divisors (184481664308).

201220252012 is a wasteful number, since it uses less digits than its factorization.

201220252012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251602 (or 251600 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 201220252012 its reverse (210252022102), we get a palindrome (411472274114).

The spelling of 201220252012 in words is "two hundred one billion, two hundred twenty million, two hundred fifty-two thousand, twelve".