122202002121221 has 4 divisors (see below), whose sum is σ = 133311275041344. Its totient is φ = 111092729201100.

The previous prime is 122202002121217. The next prime is 122202002121229. The reversal of 122202002121221 is 122121200202221.

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.

It is a cyclic number.

It is not a de Polignac number, because 122202002121221 - 2² = 122202002121217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122202002121193 and 122202002121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202002121229) 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, 5554636460045 + ... + 5554636460066.

It is an arithmetic number, because the mean of its divisors is an integer number (33327818760336).

Almost surely, 2^{122202002121221} is an apocalyptic number.

122202002121221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122202002121221 is a deficient number, since it is larger than the sum of its proper divisors (11109272920123).

122202002121221 is a wasteful number, since it uses less digits than its factorization.

122202002121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109272920122.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122202002121221 its reverse (122121200202221), we get a palindrome (244323202323442).

The spelling of 122202002121221 in words is "one hundred twenty-two trillion, two hundred two billion, two million, one hundred twenty-one thousand, two hundred twenty-one".