12121102 has 16 divisors (see below), whose sum is σ = 22001760. Its totient is φ = 4889088.

The previous prime is 12121099. The next prime is 12121103. The reversal of 12121102 is 20112121.

12121102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121102² = 293842227388808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121103) 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, 25227 + ... + 25702.

It is an arithmetic number, because the mean of its divisors is an integer number (1375110).

Almost surely, 2^12121102 is an apocalyptic number.

12121102 is a deficient number, since it is larger than the sum of its proper divisors (9880658).

12121102 is a wasteful number, since it uses less digits than its factorization.

12121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50955.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12121102 is about 3481.5373041230. The cubic root of 12121102 is about 229.7104232170.

Adding to 12121102 its reverse (20112121), we get a palindrome (32233223).

The spelling of 12121102 in words is "twelve million, one hundred twenty-one thousand, one hundred two".