121221211196 has 12 divisors (see below), whose sum is σ = 212160940320. Its totient is φ = 60603799680.

The previous prime is 121221211159. The next prime is 121221211249. The reversal of 121221211196 is 691112122121.

It is a happy number.

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, 1661300 + ... + 1732731.

It is an arithmetic number, because the mean of its divisors is an integer number (17680078360).

Almost surely, 2^121221211196 is an apocalyptic number.

It is an amenable number.

121221211196 is a deficient number, since it is larger than the sum of its proper divisors (90939729124).

121221211196 is a wasteful number, since it uses less digits than its factorization.

121221211196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402964 (or 3402962 counting only the distinct ones).

The product of its digits is 864, while the sum is 29.

The spelling of 121221211196 in words is "one hundred twenty-one billion, two hundred twenty-one million, two hundred eleven thousand, one hundred ninety-six".