21122041121300 has 108 divisors (see below), whose sum is σ = 53332133712480. Its totient is φ = 7239932038080.

The previous prime is 21122041121297. The next prime is 21122041121339. The reversal of 21122041121300 is 312114022112.

It is a super-2 number, since 2×21122041121300² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18067961 + ... + 19201439.

Almost surely, 2^{21122041121300} is an apocalyptic number.

21122041121300 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 21122041121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26666066856240).

21122041121300 is an abundant number, since it is smaller than the sum of its proper divisors (32210092591180).

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

21122041121300 is a wasteful number, since it uses less digits than its factorization.

21122041121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137310 (or 1137296 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21122041121300 its reverse (312114022112), we get a palindrome (21434155143412).

The spelling of 21122041121300 in words is "twenty-one trillion, one hundred twenty-two billion, forty-one million, one hundred twenty-one thousand, three hundred".