121002113101220 has 48 divisors (see below), whose sum is σ = 273660136530480. Its totient is φ = 44676200633856.

The previous prime is 121002113101153. The next prime is 121002113101231. The reversal of 121002113101220 is 22101311200121.

It is a happy number.

121002113101220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 78944397824356 + 42057715276864 = 8885066^2 + 6485192^2 .

It is a super-2 number, since 2×121002113101220² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66347 + ... + 15556626.

It is an arithmetic number, because the mean of its divisors is an integer number (5701252844385).

Almost surely, 2^{121002113101220} is an apocalyptic number.

121002113101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002113101220 is an abundant number, since it is smaller than the sum of its proper divisors (152658023429260).

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

121002113101220 is a wasteful number, since it uses less digits than its factorization.

121002113101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15652784 (or 15652782 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121002113101220 its reverse (22101311200121), we get a palindrome (143103424301341).

The spelling of 121002113101220 in words is "one hundred twenty-one trillion, two billion, one hundred thirteen million, one hundred one thousand, two hundred twenty".