21113200101222 has 48 divisors (see below), whose sum is σ = 46312504842240. Its totient is φ = 6950524928496.

The previous prime is 21113200101211. The next prime is 21113200101263. The reversal of 21113200101222 is 22210100231112.

21113200101222 is a `hidden beast` number, since 2 + 111 + 320 + 0 + 10 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21113200101195 and 21113200101204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1846903 + ... + 6755549.

It is an arithmetic number, because the mean of its divisors is an integer number (964843850880).

Almost surely, 2^{21113200101222} is an apocalyptic number.

21113200101222 is an abundant number, since it is smaller than the sum of its proper divisors (25199304741018).

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

21113200101222 is a wasteful number, since it uses less digits than its factorization.

21113200101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911617 (or 4911614 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21113200101222 its reverse (22210100231112), we get a palindrome (43323300332334).

The spelling of 21113200101222 in words is "twenty-one trillion, one hundred thirteen billion, two hundred million, one hundred one thousand, two hundred twenty-two".