201212122111102 has 32 divisors (see below), whose sum is σ = 336420238567680. Its totient is φ = 89696887367040.

The previous prime is 201212122111093. The next prime is 201212122111103. The reversal of 201212122111102 is 201111221212102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 201212122111102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212122111103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5527674 + ... + 20808157.

It is an arithmetic number, because the mean of its divisors is an integer number (10513132455240).

Almost surely, 2^{201212122111102} is an apocalyptic number.

201212122111102 is a deficient number, since it is larger than the sum of its proper divisors (135208116456578).

201212122111102 is a wasteful number, since it uses less digits than its factorization.

201212122111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26347696.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201212122111102 its reverse (201111221212102), we get a palindrome (402323343323204).

The spelling of 201212122111102 in words is "two hundred one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred eleven thousand, one hundred two".