122211101112220 has 12 divisors (see below), whose sum is σ = 256643312335704. Its totient is φ = 48884440444880.

The previous prime is 122211101112097. The next prime is 122211101112263. The reversal of 122211101112220 is 22211101112221.

It is a happy number.

It is a super-2 number, since 2×122211101112220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055277527786 + ... + 3055277527825.

It is an arithmetic number, because the mean of its divisors is an integer number (21386942694642).

Almost surely, 2^{122211101112220} is an apocalyptic number.

122211101112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211101112220 is an abundant number, since it is smaller than the sum of its proper divisors (134432211223484).

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

122211101112220 is a wasteful number, since it uses less digits than its factorization.

122211101112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110555055620 (or 6110555055618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122211101112220 its reverse (22211101112221), we get a palindrome (144422202224441).

Subtracting from 122211101112220 its reverse (22211101112221), we obtain a palindrome (99999999999999).

The spelling of 122211101112220 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred one million, one hundred twelve thousand, two hundred twenty".