121112120201020 has 96 divisors (see below), whose sum is σ = 279678430176768. Its totient is φ = 43783800901632.

The previous prime is 121112120200961. The next prime is 121112120201117. The reversal of 121112120201020 is 20102021211121.

It is a junction number, because it is equal to n+sod(n) for n = 121112120200985 and 121112120201003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20688204 + ... + 25888723.

It is an arithmetic number, because the mean of its divisors is an integer number (2913316981008).

Almost surely, 2^{121112120201020} is an apocalyptic number.

121112120201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112120201020 is an abundant number, since it is smaller than the sum of its proper divisors (158566309975748).

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

121112120201020 is a wasteful number, since it uses less digits than its factorization.

121112120201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46577159 (or 46577157 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112120201020 its reverse (20102021211121), we get a palindrome (141214141412141).

The spelling of 121112120201020 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twenty million, two hundred one thousand, twenty".