121002120111222 has 72 divisors (see below), whose sum is σ = 305039341401912. Its totient is φ = 34564710096000.

The previous prime is 121002120111193. The next prime is 121002120111253. The reversal of 121002120111222 is 222111021200121.

121002120111222 is a `hidden beast` number, since 1 + 210 + 0 + 2 + 120 + 111 + 222 = 666.

121002120111222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 121002120111195 and 121002120111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10365904 + ... + 18693747.

It is an arithmetic number, because the mean of its divisors is an integer number (4236657519471).

Almost surely, 2^{121002120111222} is an apocalyptic number.

121002120111222 is an abundant number, since it is smaller than the sum of its proper divisors (184037221290690).

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

121002120111222 is a wasteful number, since it uses less digits than its factorization.

121002120111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29064394 (or 29064384 counting only the distinct ones).

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

Adding to 121002120111222 its reverse (222111021200121), we get a palindrome (343113141311343).

The spelling of 121002120111222 in words is "one hundred twenty-one trillion, two billion, one hundred twenty million, one hundred eleven thousand, two hundred twenty-two".