121122022200120 has 192 divisors, whose sum is σ = 394196699239200. Its totient is φ = 32254094315520.

The previous prime is 121122022200077. The next prime is 121122022200203. The reversal of 121122022200120 is 21002220221121.

It is a happy number.

121122022200120 is a `hidden beast` number, since 1 + 211 + 220 + 2 + 220 + 0 + 12 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 121122022200093 and 121122022200102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 881658796 + ... + 881796164.

Almost surely, 2^{121122022200120} is an apocalyptic number.

121122022200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121122022200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197098349619600).

121122022200120 is an abundant number, since it is smaller than the sum of its proper divisors (273074677039080).

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

121122022200120 is a wasteful number, since it uses less digits than its factorization.

121122022200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140790 (or 140783 counting only the distinct ones).

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

Adding to 121122022200120 its reverse (21002220221121), we get a palindrome (142124242421241).

The spelling of 121122022200120 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twenty-two million, two hundred thousand, one hundred twenty".