1421251012 has 6 divisors (see below), whose sum is σ = 2487189278. Its totient is φ = 710625504.

The previous prime is 1421251003. The next prime is 1421251037. The reversal of 1421251012 is 2101521241.

It can be written as a sum of positive squares in only one way, i.e., 1092699136 + 328551876 = 33056^2 + 18126^2 .

It is a super-2 number, since 2×1421251012² = 4039908878222048288, 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, 177656373 + ... + 177656380.

Almost surely, 2^1421251012 is an apocalyptic number.

It is an amenable number.

1421251012 is a deficient number, since it is larger than the sum of its proper divisors (1065938266).

1421251012 is a wasteful number, since it uses less digits than its factorization.

1421251012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355312757 (or 355312755 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1421251012 is about 37699.4829142258. The cubic root of 1421251012 is about 1124.3208442696.

Adding to 1421251012 its reverse (2101521241), we get a palindrome (3522772253).

The spelling of 1421251012 in words is "one billion, four hundred twenty-one million, two hundred fifty-one thousand, twelve".