21022000001112 has 128 divisors (see below), whose sum is σ = 57928831430400. Its totient is φ = 6304080691200.

The previous prime is 21022000001111. The next prime is 21022000001113. The reversal of 21022000001112 is 21110000022012.

It is an interprime number because it is at equal distance from previous prime (21022000001111) and next prime (21022000001113).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022000001111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367932787 + ... + 367989917.

It is an arithmetic number, because the mean of its divisors is an integer number (452568995550).

Almost surely, 2^{21022000001112} is an apocalyptic number.

21022000001112 is a gapful number since it is divisible by the number (22) 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 21022000001112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28964415715200).

21022000001112 is an abundant number, since it is smaller than the sum of its proper divisors (36906831429288).

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

21022000001112 is a wasteful number, since it uses less digits than its factorization.

21022000001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71617 (or 71613 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21022000001112 its reverse (21110000022012), we get a palindrome (42132000023124).

The spelling of 21022000001112 in words is "twenty-one trillion, twenty-two billion, one thousand, one hundred twelve".