222202201121021 has 4 divisors (see below), whose sum is σ = 242402401222944. Its totient is φ = 202002001019100.

The previous prime is 222202201121011. The next prime is 222202201121023. The reversal of 222202201121021 is 120121102202222.

222202201121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-222202201121021 is a prime.

It is a super-2 number, since 2×222202201121021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222202201120984 and 222202201121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202201121023) 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, 10100100050945 + ... + 10100100050966.

It is an arithmetic number, because the mean of its divisors is an integer number (60600600305736).

Almost surely, 2^{222202201121021} is an apocalyptic number.

It is an amenable number.

222202201121021 is a deficient number, since it is larger than the sum of its proper divisors (20200200101923).

222202201121021 is a wasteful number, since it uses less digits than its factorization.

222202201121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200200101922.

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

Adding to 222202201121021 its reverse (120121102202222), we get a palindrome (342323303323243).

It can be divided in two parts, 222202201 and 121021, that added together give a palindrome (222323222).

The spelling of 222202201121021 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred one million, one hundred twenty-one thousand, twenty-one".