121206812 has 12 divisors (see below), whose sum is σ = 212203320. Its totient is φ = 60577296.

The previous prime is 121206797. The next prime is 121206823. The reversal of 121206812 is 218602121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7058 + ... + 17094.

It is an arithmetic number, because the mean of its divisors is an integer number (17683610).

Almost surely, 2^121206812 is an apocalyptic number.

It is an amenable number.

121206812 is a deficient number, since it is larger than the sum of its proper divisors (90996508).

121206812 is a wasteful number, since it uses less digits than its factorization.

121206812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13060 (or 13058 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 121206812 is about 11009.3965320539. The cubic root of 121206812 is about 494.8903773845.

Adding to 121206812 its reverse (218602121), we get a palindrome (339808933).

The spelling of 121206812 in words is "one hundred twenty-one million, two hundred six thousand, eight hundred twelve".