11211221000022 has 32 divisors (see below), whose sum is σ = 22448339222400. Its totient is φ = 3732759098880.

The previous prime is 11211220999997. The next prime is 11211221000027. The reversal of 11211221000022 is 22000012211211.

It is a super-2 number, since 2×11211221000022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11211220999965 and 11211221000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211221000027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27572854 + ... + 27976502.

It is an arithmetic number, because the mean of its divisors is an integer number (701510600700).

Almost surely, 2^{11211221000022} is an apocalyptic number.

11211221000022 is an abundant number, since it is smaller than the sum of its proper divisors (11237118222378).

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

11211221000022 is a wasteful number, since it uses less digits than its factorization.

11211221000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408988.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11211221000022 its reverse (22000012211211), we get a palindrome (33211233211233).

The spelling of 11211221000022 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-one million, twenty-two", and thus it is an aban number.