121010212122120 has 192 divisors, whose sum is σ = 394871921421120. Its totient is φ = 32139132175872.

The previous prime is 121010212122049. The next prime is 121010212122161. The reversal of 121010212122120 is 21221212010121.

121010212122120 is a `hidden beast` number, since 1 + 210 + 1 + 0 + 212 + 1 + 221 + 20 = 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 = 121010212122093 and 121010212122102.

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, 233784319 + ... + 234301361.

It is an arithmetic number, because the mean of its divisors is an integer number (2056624590735).

Almost surely, 2^{121010212122120} is an apocalyptic number.

121010212122120 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 121010212122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197435960710560).

121010212122120 is an abundant number, since it is smaller than the sum of its proper divisors (273861709299000).

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

121010212122120 is a wasteful number, since it uses less digits than its factorization.

121010212122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519684 (or 519677 counting only the distinct ones).

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

Adding to 121010212122120 its reverse (21221212010121), we get a palindrome (142231424132241).

The spelling of 121010212122120 in words is "one hundred twenty-one trillion, ten billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty".