22021121011260 has 48 divisors (see below), whose sum is σ = 70467587237376. Its totient is φ = 5033399088192.

The previous prime is 22021121011259. The next prime is 22021121011261. The reversal of 22021121011260 is 6211012112022.

It is an interprime number because it is at equal distance from previous prime (22021121011259) and next prime (22021121011261).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021121011261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26215619832 + ... + 26215620671.

It is an arithmetic number, because the mean of its divisors is an integer number (1468074734112).

Almost surely, 2^{22021121011260} is an apocalyptic number.

22021121011260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021121011260 is an abundant number, since it is smaller than the sum of its proper divisors (48446466226116).

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

22021121011260 is a wasteful number, since it uses less digits than its factorization.

22021121011260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52431240522 (or 52431240520 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 22021121011260 its reverse (6211012112022), we get a palindrome (28232133123282).

The spelling of 22021121011260 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, eleven thousand, two hundred sixty".