12212211102 has 160 divisors (see below), whose sum is σ = 31217481120. Its totient is φ = 3165039360.

The previous prime is 12212211101. The next prime is 12212211127. The reversal of 12212211102 is 20111221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212211101) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11423424 + ... + 11424492.

It is an arithmetic number, because the mean of its divisors is an integer number (195109257).

Almost surely, 2^12212211102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212211102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15608740560).

12212211102 is an abundant number, since it is smaller than the sum of its proper divisors (19005270018).

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

12212211102 is a wasteful number, since it uses less digits than its factorization.

12212211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1155 counting only the distinct ones).

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

Adding to 12212211102 its reverse (20111221221), we get a palindrome (32323432323).

The spelling of 12212211102 in words is "twelve billion, two hundred twelve million, two hundred eleven thousand, one hundred two".