201222122121122 has 16 divisors (see below), whose sum is σ = 302572627576800. Its totient is φ = 100364581980000.

The previous prime is 201222122121103. The next prime is 201222122121127. The reversal of 201222122121122 is 221121221222102.

It is not an unprimeable number, because it can be changed into a prime (201222122121127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216780497 + ... + 217706747.

It is an arithmetic number, because the mean of its divisors is an integer number (18910789223550).

Almost surely, 2^{201222122121122} is an apocalyptic number.

201222122121122 is a deficient number, since it is larger than the sum of its proper divisors (101350505455678).

201222122121122 is a wasteful number, since it uses less digits than its factorization.

201222122121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192241.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 201222122121122 its reverse (221121221222102), we get a palindrome (422343343343224).

The spelling of 201222122121122 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".