4122402220121 has 4 divisors (see below), whose sum is σ = 4122406732752. Its totient is φ = 4122397707492.

The previous prime is 4122402220109. The next prime is 4122402220229. The reversal of 4122402220121 is 1210222042214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4122402220121 - 2³⁸ = 3847524313177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4122402220721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348071 + ... + 2892396.

It is an arithmetic number, because the mean of its divisors is an integer number (1030601683188).

Almost surely, 2^{4122402220121} is an apocalyptic number.

It is an amenable number.

4122402220121 is a deficient number, since it is larger than the sum of its proper divisors (4512631).

4122402220121 is a wasteful number, since it uses less digits than its factorization.

4122402220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512630.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 4122402220121 its reverse (1210222042214), we get a palindrome (5332624262335).

The spelling of 4122402220121 in words is "four trillion, one hundred twenty-two billion, four hundred two million, two hundred twenty thousand, one hundred twenty-one".