122111122212020 has 24 divisors (see below), whose sum is σ = 256475046605568. Its totient is φ = 48836507940000.

The previous prime is 122111122212011. The next prime is 122111122212049. The reversal of 122111122212020 is 20212221111221.

It is a super-2 number, since 2×122111122212020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122111122211983 and 122111122212001.

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, 496182956 + ... + 496428995.

It is an arithmetic number, because the mean of its divisors is an integer number (10686460275232).

Almost surely, 2^{122111122212020} is an apocalyptic number.

122111122212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111122212020 is an abundant number, since it is smaller than the sum of its proper divisors (134363924393548).

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

122111122212020 is a wasteful number, since it uses less digits than its factorization.

122111122212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992618111 (or 992618109 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122111122212020 its reverse (20212221111221), we get a palindrome (142323343323241).

The spelling of 122111122212020 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, twenty".