6121271200 has 72 divisors (see below), whose sum is σ = 16302081600. Its totient is φ = 2225913600.

The previous prime is 6121271147. The next prime is 6121271213. The reversal of 6121271200 is 21721216.

It is a happy number.

It is a super-2 number, since 2×6121271200² = 74939922207898880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339000 + ... + 356599.

It is an arithmetic number, because the mean of its divisors is an integer number (226417800).

Almost surely, 2^6121271200 is an apocalyptic number.

It is an amenable number.

6121271200 is an abundant number, since it is smaller than the sum of its proper divisors (10180810400).

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

6121271200 is a wasteful number, since it uses less digits than its factorization.

6121271200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695630 (or 695617 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 6121271200 is about 78238.5531563564. The cubic root of 6121271200 is about 1829.2814920460.

Adding to 6121271200 its reverse (21721216), we get a palindrome (6142992416).

The spelling of 6121271200 in words is "six billion, one hundred twenty-one million, two hundred seventy-one thousand, two hundred".