121222102020012 has 54 divisors (see below), whose sum is σ = 356450704754508. Its totient is φ = 34634886290928.

The previous prime is 121222102020011. The next prime is 121222102020013. The reversal of 121222102020012 is 210020201222121.

It is a happy number.

121222102020012 is a `hidden beast` number, since 1 + 212 + 221 + 0 + 20 + 200 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (121222102020011) and next prime (121222102020013).

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

It is not an unprimeable number, because it can be changed into a prime (121222102020011) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34360004478 + ... + 34360008005.

Almost surely, 2^{121222102020012} is an apocalyptic number.

121222102020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121222102020012 is an abundant number, since it is smaller than the sum of its proper divisors (235228602734496).

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

121222102020012 is a wasteful number, since it uses less digits than its factorization.

121222102020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68720012507 (or 68720012495 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121222102020012 its reverse (210020201222121), we get a palindrome (331242303242133).

The spelling of 121222102020012 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred two million, twenty thousand, twelve".