22021121021120 has 224 divisors, whose sum is σ = 57120810888960. Its totient is φ = 8037429903360.

The previous prime is 22021121021057. The next prime is 22021121021161. The reversal of 22021121021120 is 2112012112022.

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, 2714965865 + ... + 2714973975.

It is an arithmetic number, because the mean of its divisors is an integer number (255003620040).

Almost surely, 2^{22021121021120} is an apocalyptic number.

22021121021120 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 22021121021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28560405444480).

22021121021120 is an abundant number, since it is smaller than the sum of its proper divisors (35099689867840).

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

22021121021120 is a wasteful number, since it uses less digits than its factorization.

22021121021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15563 (or 15553 counting only the distinct ones).

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

Adding to 22021121021120 its reverse (2112012112022), we get a palindrome (24133133133142).

The spelling of 22021121021120 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty".