2142251512 has 16 divisors (see below), whose sum is σ = 4017618360. Its totient is φ = 1070886624.

The previous prime is 2142251491. The next prime is 2142251519. The reversal of 2142251512 is 2151522412.

It is a super-2 number, since 2×2142251512² = 9178483081332572288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142251519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11563 + ... + 66469.

Almost surely, 2^2142251512 is an apocalyptic number.

It is an amenable number.

2142251512 is a deficient number, since it is larger than the sum of its proper divisors (1875366848).

2142251512 is a wasteful number, since it uses less digits than its factorization.

2142251512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59790 (or 59786 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 2142251512 is about 46284.4629654488. The cubic root of 2142251512 is about 1289.1105203734.

Adding to 2142251512 its reverse (2151522412), we get a palindrome (4293773924).

The spelling of 2142251512 in words is "two billion, one hundred forty-two million, two hundred fifty-one thousand, five hundred twelve".