121222122021110 has 64 divisors (see below), whose sum is σ = 244114372339200. Its totient is φ = 42959744378880.

The previous prime is 121222122021079. The next prime is 121222122021127. The reversal of 121222122021110 is 11120221222121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26415602 + ... + 30663141.

It is an arithmetic number, because the mean of its divisors is an integer number (3814287067800).

Almost surely, 2^{121222122021110} is an apocalyptic number.

121222122021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222122021110 is an abundant number, since it is smaller than the sum of its proper divisors (122892250318090).

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

121222122021110 is a wasteful number, since it uses less digits than its factorization.

121222122021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57079253.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121222122021110 its reverse (11120221222121), we get a palindrome (132342343243231).

The spelling of 121222122021110 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, one hundred ten".