122202021 has 16 divisors (see below), whose sum is σ = 168069888. Its totient is φ = 78936000.

The previous prime is 122202011. The next prime is 122202023. The reversal of 122202021 is 120202221.

It is not a de Polignac number, because 122202021 - 2¹⁰ = 122200997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122201988 and 122202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202023) 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, 9951 + ... + 18531.

It is an arithmetic number, because the mean of its divisors is an integer number (10504368).

Almost surely, 2^122202021 is an apocalyptic number.

It is an amenable number.

122202021 is a deficient number, since it is larger than the sum of its proper divisors (45867867).

122202021 is a wasteful number, since it uses less digits than its factorization.

122202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 122202021 is about 11054.5022954451. The cubic root of 122202021 is about 496.2411746068.

Adding to 122202021 its reverse (120202221), we get a palindrome (242404242).

It can be divided in two parts, 12220 and 2021, that added together give a palindrome (14241).

The spelling of 122202021 in words is "one hundred twenty-two million, two hundred two thousand, twenty-one".