12122102120121 has 48 divisors (see below), whose sum is σ = 20049234341760. Its totient is φ = 6913714648320.

The previous prime is 12122102120119. The next prime is 12122102120123. The reversal of 12122102120121 is 12102120122121.

12122102120121 is a `hidden beast` number, since 1 + 212 + 210 + 2 + 120 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (12122102120119) and next prime (12122102120123).

It is not a de Polignac number, because 12122102120121 - 2¹ = 12122102120119 is a prime.

It is a super-2 number, since 2×12122102120121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12122102120094 and 12122102120103.

It is not an unprimeable number, because it can be changed into a prime (12122102120123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 352154491 + ... + 352188911.

It is an arithmetic number, because the mean of its divisors is an integer number (417692382120).

Almost surely, 2^{12122102120121} is an apocalyptic number.

It is an amenable number.

12122102120121 is a deficient number, since it is larger than the sum of its proper divisors (7927132221639).

12122102120121 is a wasteful number, since it uses less digits than its factorization.

12122102120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44926 (or 44923 counting only the distinct ones).

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

Adding to 12122102120121 its reverse (12102120122121), we get a palindrome (24224222242242).

The spelling of 12122102120121 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, one hundred twenty thousand, one hundred twenty-one".