121212021122 has 8 divisors (see below), whose sum is σ = 181907208000. Its totient is φ = 60576285124.

The previous prime is 121212021097. The next prime is 121212021163. The reversal of 121212021122 is 221120212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121212021122.

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, 14857622 + ... + 14865777.

It is an arithmetic number, because the mean of its divisors is an integer number (22738401000).

Almost surely, 2^121212021122 is an apocalyptic number.

121212021122 is a deficient number, since it is larger than the sum of its proper divisors (60695186878).

121212021122 is a wasteful number, since it uses less digits than its factorization.

121212021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29725440.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121212021122 its reverse (221120212121), we get a palindrome (342332233243).

The spelling of 121212021122 in words is "one hundred twenty-one billion, two hundred twelve million, twenty-one thousand, one hundred twenty-two".