12121100121102 has 32 divisors (see below), whose sum is σ = 28118884722432. Its totient is φ = 3411482336064.

The previous prime is 12121100121083. The next prime is 12121100121199. The reversal of 12121100121102 is 20112100112121.

It is a happy number.

12121100121102 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2153710783 + ... + 2153716410.

It is an arithmetic number, because the mean of its divisors is an integer number (878715147576).

Almost surely, 2^{12121100121102} is an apocalyptic number.

12121100121102 is an abundant number, since it is smaller than the sum of its proper divisors (15997784601330).

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

12121100121102 is a wasteful number, since it uses less digits than its factorization.

12121100121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307427272.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12121100121102 its reverse (20112100112121), we get a palindrome (32233200233223).

The spelling of 12121100121102 in words is "twelve trillion, one hundred twenty-one billion, one hundred million, one hundred twenty-one thousand, one hundred two".