12121012122102 has 48 divisors (see below), whose sum is σ = 28285369454160. Its totient is φ = 3729145553856.

The previous prime is 12121012122101. The next prime is 12121012122169. The reversal of 12121012122102 is 20122121012121.

12121012122102 is a `hidden beast` number, since 121 + 210 + 121 + 2 + 210 + 2 = 666.

12121012122102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121012122101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545673 + ... + 4953764.

It is an arithmetic number, because the mean of its divisors is an integer number (589278530295).

Almost surely, 2^{12121012122102} is an apocalyptic number.

12121012122102 is an abundant number, since it is smaller than the sum of its proper divisors (16164357332058).

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

12121012122102 is a wasteful number, since it uses less digits than its factorization.

12121012122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508877 (or 5508874 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12121012122102 its reverse (20122121012121), we get a palindrome (32243133134223).

The spelling of 12121012122102 in words is "twelve trillion, one hundred twenty-one billion, twelve million, one hundred twenty-two thousand, one hundred two".