22121201211120 has 420 divisors, whose sum is σ = 84759952781448. Its totient is φ = 5362713734400.

The previous prime is 22121201211119. The next prime is 22121201211149. The reversal of 22121201211120 is 2111210212122.

22121201211120 is a `hidden beast` number, since 2 + 212 + 120 + 1 + 211 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22121201211093 and 22121201211102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 5489335 + ... + 8624105.

Almost surely, 2^{22121201211120} is an apocalyptic number.

22121201211120 is a gapful number since it is divisible by the number (20) 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 22121201211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42379976390724).

22121201211120 is an abundant number, since it is smaller than the sum of its proper divisors (62638751570328).

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

22121201211120 is a wasteful number, since it uses less digits than its factorization.

22121201211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134824 (or 3134792 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22121201211120 its reverse (2111210212122), we get a palindrome (24232411423242).

The spelling of 22121201211120 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred one million, two hundred eleven thousand, one hundred twenty".