122021004121 has 8 divisors (see below), whose sum is σ = 122343173384. Its totient is φ = 121698910080.

The previous prime is 122021004107. The next prime is 122021004143. The reversal of 122021004121 is 121400120221.

It can be written as a sum of positive squares in 4 ways, for example, as 5958141721 + 116062862400 = 77189^2 + 340680^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122021004121 - 2¹⁷ = 122020873049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122021004095 and 122021004104.

It is not an unprimeable number, because it can be changed into a prime (122021004421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899661 + ... + 4924501.

It is an arithmetic number, because the mean of its divisors is an integer number (15292896673).

Almost surely, 2^122021004121 is an apocalyptic number.

It is an amenable number.

122021004121 is a deficient number, since it is larger than the sum of its proper divisors (322169263).

122021004121 is a wasteful number, since it uses less digits than its factorization.

122021004121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37611.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122021004121 its reverse (121400120221), we get a palindrome (243421124342).

The spelling of 122021004121 in words is "one hundred twenty-two billion, twenty-one million, four thousand, one hundred twenty-one".