122143105021 has 16 divisors (see below), whose sum is σ = 144855216000. Its totient is φ = 102919596864.

The previous prime is 122143105001. The next prime is 122143105103. The reversal of 122143105021 is 120501341221.

It is not a de Polignac number, because 122143105021 - 2²⁷ = 122008887293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122143104983 and 122143105001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122143105001) 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, 2997580 + ... + 3038053.

It is an arithmetic number, because the mean of its divisors is an integer number (9053451000).

Almost surely, 2^122143105021 is an apocalyptic number.

It is an amenable number.

122143105021 is a deficient number, since it is larger than the sum of its proper divisors (22712110979).

122143105021 is an frugal number, since it uses more digits than its factorization.

122143105021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035713 (or 6035699 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 122143105021 its reverse (120501341221), we get a palindrome (242644446242).

The spelling of 122143105021 in words is "one hundred twenty-two billion, one hundred forty-three million, one hundred five thousand, twenty-one".