122111121122020 has 24 divisors (see below), whose sum is σ = 257268642168384. Its totient is φ = 48685346008416.

The previous prime is 122111121122009. The next prime is 122111121122033. The reversal of 122111121122020 is 20221121111221.

It is a happy number.

It is a super-2 number, since 2×122111121122020² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9943896232 + ... + 9943908511.

It is an arithmetic number, because the mean of its divisors is an integer number (10719526757016).

Almost surely, 2^{122111121122020} is an apocalyptic number.

122111121122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111121122020 is an abundant number, since it is smaller than the sum of its proper divisors (135157521046364).

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

122111121122020 is a wasteful number, since it uses less digits than its factorization.

122111121122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19887805059 (or 19887805057 counting only the distinct ones).

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

Adding to 122111121122020 its reverse (20221121111221), we get a palindrome (142332242233241).

The spelling of 122111121122020 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty".