121222021112 has 16 divisors (see below), whose sum is σ = 228175695360. Its totient is φ = 60375169024.

The previous prime is 121222021013. The next prime is 121222021121. The reversal of 121222021112 is 211120222121.

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, 29478008 + ... + 29482119.

It is an arithmetic number, because the mean of its divisors is an integer number (14260980960).

Almost surely, 2^121222021112 is an apocalyptic number.

It is an amenable number.

121222021112 is a deficient number, since it is larger than the sum of its proper divisors (106953674248).

121222021112 is a wasteful number, since it uses less digits than its factorization.

121222021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58960390 (or 58960386 counting only the distinct ones).

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

Adding to 121222021112 its reverse (211120222121), we get a palindrome (332342243233).

The spelling of 121222021112 in words is "one hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, one hundred twelve".