22111020301020 has 384 divisors, whose sum is σ = 78232236687360. Its totient is φ = 4549443148800.

The previous prime is 22111020300973. The next prime is 22111020301037. The reversal of 22111020301020 is 2010302011122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27315634 + ... + 28113446.

It is an arithmetic number, because the mean of its divisors is an integer number (203729783040).

Almost surely, 2^{22111020301020} is an apocalyptic number.

22111020301020 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 22111020301020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39116118343680).

22111020301020 is an abundant number, since it is smaller than the sum of its proper divisors (56121216386340).

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

22111020301020 is a wasteful number, since it uses less digits than its factorization.

22111020301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798025 (or 798023 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22111020301020 its reverse (2010302011122), we get a palindrome (24121322312142).

The spelling of 22111020301020 in words is "twenty-two trillion, one hundred eleven billion, twenty million, three hundred one thousand, twenty".