122211222000020 has 24 divisors (see below), whose sum is σ = 256646137066368. Its totient is φ = 48883999111200.

The previous prime is 122211222000019. The next prime is 122211222000047. The reversal of 122211222000020 is 20000222112221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28555736 + ... + 32555375.

It is an arithmetic number, because the mean of its divisors is an integer number (10693589044432).

Almost surely, 2^{122211222000020} is an apocalyptic number.

122211222000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211222000020 is an abundant number, since it is smaller than the sum of its proper divisors (134434915066348).

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

122211222000020 is a wasteful number, since it uses less digits than its factorization.

122211222000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61211111 (or 61211109 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122211222000020 its reverse (20000222112221), we get a palindrome (142211444112241).

The spelling of 122211222000020 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, twenty", and thus it is an aban number.