12121122102 has 16 divisors (see below), whose sum is σ = 24246190080. Its totient is φ = 4039716392.

The previous prime is 12121122089. The next prime is 12121122103. The reversal of 12121122102 is 20122112121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121122103) 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, 123702 + ... + 198857.

It is an arithmetic number, because the mean of its divisors is an integer number (1515386880).

Almost surely, 2^12121122102 is an apocalyptic number.

12121122102 is an abundant number, since it is smaller than the sum of its proper divisors (12125067978).

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

12121122102 is a wasteful number, since it uses less digits than its factorization.

12121122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328827.

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

Adding to 12121122102 its reverse (20122112121), we get a palindrome (32243234223).

The spelling of 12121122102 in words is "twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred two".