121022120110212 has 36 divisors (see below), whose sum is σ = 305937051903756. Its totient is φ = 40338065903040.

The previous prime is 121022120110207. The next prime is 121022120110247. The reversal of 121022120110212 is 212011021220121.

121022120110212 is a `hidden beast` number, since 1 + 21 + 0 + 221 + 201 + 10 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11654740521216 + 109367379588996 = 3413904^2 + 10457886^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109475739 + ... + 110575682.

It is an arithmetic number, because the mean of its divisors is an integer number (8498251441771).

Almost surely, 2^{121022120110212} is an apocalyptic number.

121022120110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121022120110212 is an abundant number, since it is smaller than the sum of its proper divisors (184914931793544).

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

121022120110212 is a wasteful number, since it uses less digits than its factorization.

121022120110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220066708 (or 220066703 counting only the distinct ones).

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

Adding to 121022120110212 its reverse (212011021220121), we get a palindrome (333033141330333).

The spelling of 121022120110212 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty million, one hundred ten thousand, two hundred twelve".