201212001100122 has 32 divisors (see below), whose sum is σ = 402556142234880. Its totient is φ = 67048646446080.

The previous prime is 201212001100081. The next prime is 201212001100139. The reversal of 201212001100122 is 221001100212102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299250418 + ... + 299922050.

It is an arithmetic number, because the mean of its divisors is an integer number (12579879444840).

Almost surely, 2^{201212001100122} is an apocalyptic number.

201212001100122 is an abundant number, since it is smaller than the sum of its proper divisors (201344141134758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201212001100122 is a wasteful number, since it uses less digits than its factorization.

201212001100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687958.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201212001100122 its reverse (221001100212102), we get a palindrome (422213101312224).

The spelling of 201212001100122 in words is "two hundred one trillion, two hundred twelve billion, one million, one hundred thousand, one hundred twenty-two".