121022120000 has 140 divisors (see below), whose sum is σ = 301184102736. Its totient is φ = 48233280000.

The previous prime is 121022119949. The next prime is 121022120027. The reversal of 121022120000 is 21220121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11314655 + ... + 11325345.

Almost surely, 2^121022120000 is an apocalyptic number.

121022120000 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 121022120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150592051368).

121022120000 is an abundant number, since it is smaller than the sum of its proper divisors (180161982736).

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

121022120000 is an equidigital number, since it uses as much as digits as its factorization.

121022120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006 (or 10981 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121022120000 its reverse (21220121), we get a palindrome (121043340121).

The spelling of 121022120000 in words is "one hundred twenty-one billion, twenty-two million, one hundred twenty thousand".