222202220222121 has 32 divisors (see below), whose sum is σ = 304832185660800. Its totient is φ = 143885401105920.

The previous prime is 222202220222113. The next prime is 222202220222197. The reversal of 222202220222121 is 121222022202222.

It is not a de Polignac number, because 222202220222121 - 2³ = 222202220222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222202220222091 and 222202220222100.

It is not an unprimeable number, because it can be changed into a prime (222202220223121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 860062855 + ... + 860321171.

It is an arithmetic number, because the mean of its divisors is an integer number (9526005801900).

Almost surely, 2^{222202220222121} is an apocalyptic number.

It is an amenable number.

222202220222121 is a deficient number, since it is larger than the sum of its proper divisors (82629965438679).

222202220222121 is a wasteful number, since it uses less digits than its factorization.

222202220222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289129.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222202220222121 its reverse (121222022202222), we get a palindrome (343424242424343).

The spelling of 222202220222121 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".