6121214512 has 80 divisors (see below), whose sum is σ = 13763404800. Its totient is φ = 2583060480.

The previous prime is 6121214509. The next prime is 6121214543. The reversal of 6121214512 is 2154121216.

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, 4343664 + ... + 4345072.

It is an arithmetic number, because the mean of its divisors is an integer number (172042560).

Almost surely, 2^6121214512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6121214512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6881702400).

6121214512 is an abundant number, since it is smaller than the sum of its proper divisors (7642190288).

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

6121214512 is a wasteful number, since it uses less digits than its factorization.

6121214512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994 (or 1988 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 6121214512 is about 78238.1908788796. The cubic root of 6121214512 is about 1829.2758451454.

Adding to 6121214512 its reverse (2154121216), we get a palindrome (8275335728).

The spelling of 6121214512 in words is "six billion, one hundred twenty-one million, two hundred fourteen thousand, five hundred twelve".