21122021201120 has 96 divisors (see below), whose sum is σ = 60384131252928. Its totient is φ = 6815845490688.

The previous prime is 21122021201077. The next prime is 21122021201159. The reversal of 21122021201120 is 2110212022112.

It is a super-2 number, since 2×21122021201120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554655887 + ... + 554693966.

It is an arithmetic number, because the mean of its divisors is an integer number (629001367218).

Almost surely, 2^{21122021201120} is an apocalyptic number.

21122021201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122021201120 is an abundant number, since it is smaller than the sum of its proper divisors (39262110051808).

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

21122021201120 is a wasteful number, since it uses less digits than its factorization.

21122021201120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109349892 (or 1109349884 counting only the distinct ones).

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

Adding to 21122021201120 its reverse (2110212022112), we get a palindrome (23232233223232).

The spelling of 21122021201120 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-one million, two hundred one thousand, one hundred twenty".