12221010102 has 64 divisors (see below), whose sum is σ = 29635706880. Its totient is φ = 3281868576.

The previous prime is 12221010073. The next prime is 12221010119. The reversal of 12221010102 is 20101012221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41053 + ... + 161639.

It is an arithmetic number, because the mean of its divisors is an integer number (463057920).

Almost surely, 2^12221010102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221010102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14817853440).

12221010102 is an abundant number, since it is smaller than the sum of its proper divisors (17414696778).

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

12221010102 is a wasteful number, since it uses less digits than its factorization.

12221010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120745.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12221010102 its reverse (20101012221), we get a palindrome (32322022323).

The spelling of 12221010102 in words is "twelve billion, two hundred twenty-one million, ten thousand, one hundred two".