2251175212 has 48 divisors (see below), whose sum is σ = 4715680032. Its totient is φ = 926714880.

The previous prime is 2251175137. The next prime is 2251175221. The reversal of 2251175212 is 2125711522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6813 + ... + 67444.

It is an arithmetic number, because the mean of its divisors is an integer number (98243334).

Almost surely, 2^2251175212 is an apocalyptic number.

2251175212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2251175212 is an abundant number, since it is smaller than the sum of its proper divisors (2464504820).

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

2251175212 is a wasteful number, since it uses less digits than its factorization.

2251175212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74338 (or 74336 counting only the distinct ones).

The product of its digits is 2800, while the sum is 28.

The square root of 2251175212 is about 47446.5511075357. The cubic root of 2251175212 is about 1310.5988001162.

Adding to 2251175212 its reverse (2125711522), we get a palindrome (4376886734).

The spelling of 2251175212 in words is "two billion, two hundred fifty-one million, one hundred seventy-five thousand, two hundred twelve".