222210201202121 has 16 divisors (see below), whose sum is σ = 244049067288000. Its totient is φ = 200644447329600.

The previous prime is 222210201202079. The next prime is 222210201202123. The reversal of 222210201202121 is 121202102012222.

It is a cyclic number.

It is not a de Polignac number, because 222210201202121 - 2²² = 222210197007817 is a prime.

It is a super-2 number, since 2×222210201202121² (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 = 222210201202093 and 222210201202102.

It is not an unprimeable number, because it can be changed into a prime (222210201202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33383786 + ... + 39482876.

It is an arithmetic number, because the mean of its divisors is an integer number (15253066705500).

Almost surely, 2^{222210201202121} is an apocalyptic number.

It is an amenable number.

222210201202121 is a deficient number, since it is larger than the sum of its proper divisors (21838866085879).

222210201202121 is a wasteful number, since it uses less digits than its factorization.

222210201202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121480.

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

Adding to 222210201202121 its reverse (121202102012222), we get a palindrome (343412303214343).

The spelling of 222210201202121 in words is "two hundred twenty-two trillion, two hundred ten billion, two hundred one million, two hundred two thousand, one hundred twenty-one".