121111022122000 has 160 divisors (see below), whose sum is σ = 305852606751744. Its totient is φ = 46296626112000.

The previous prime is 121111022121967. The next prime is 121111022122043. The reversal of 121111022122000 is 221220111121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50203465 + ... + 52560535.

Almost surely, 2^{121111022122000} is an apocalyptic number.

121111022122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121111022122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152926303375872).

121111022122000 is an abundant number, since it is smaller than the sum of its proper divisors (184741584629744).

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

121111022122000 is a wasteful number, since it uses less digits than its factorization.

121111022122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358234 (or 2358218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121111022122000 its reverse (221220111121), we get a palindrome (121332242233121).

The spelling of 121111022122000 in words is "one hundred twenty-one trillion, one hundred eleven billion, twenty-two million, one hundred twenty-two thousand".