201221121122102 has 16 divisors (see below), whose sum is σ = 312745731816960. Its totient is φ = 96983789652288.

The previous prime is 201221121122071. The next prime is 201221121122107.

201221121122102 is nontrivially palindromic in base 10.

201221121122102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221121122107) 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, 2811414518 + ... + 2811486089.

It is an arithmetic number, because the mean of its divisors is an integer number (19546608238560).

Almost surely, 2^{201221121122102} is an apocalyptic number.

201221121122102 is a deficient number, since it is larger than the sum of its proper divisors (111524610694858).

201221121122102 is a wasteful number, since it uses less digits than its factorization.

201221121122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622901255.

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 201221121122102 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred two".