1251227202 has 16 divisors (see below), whose sum is σ = 2519251200. Its totient is φ = 414276272.

The previous prime is 1251227167. The next prime is 1251227207. The reversal of 1251227202 is 2027221521.

It is a super-2 number, since 2×1251227202² = 3131139022049497608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1251227207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698898 + ... + 700685.

It is an arithmetic number, because the mean of its divisors is an integer number (157453200).

Almost surely, 2^1251227202 is an apocalyptic number.

1251227202 is an abundant number, since it is smaller than the sum of its proper divisors (1268023998).

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

1251227202 is a wasteful number, since it uses less digits than its factorization.

1251227202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399737.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1251227202 is about 35372.6900588576. The cubic root of 1251227202 is about 1077.5697532555.

Adding to 1251227202 its reverse (2027221521), we get a palindrome (3278448723).

The spelling of 1251227202 in words is "one billion, two hundred fifty-one million, two hundred twenty-seven thousand, two hundred two".