120121111121202 has 16 divisors (see below), whose sum is σ = 266935802491680. Its totient is φ = 40040370373716.

The previous prime is 120121111121201. The next prime is 120121111121303. The reversal of 120121111121202 is 202121111121021.

It is a happy number.

120121111121202 is a `hidden beast` number, since 120 + 1 + 211 + 11 + 121 + 202 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (120121111121201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112232510328 + ... + 1112232510435.

It is an arithmetic number, because the mean of its divisors is an integer number (16683487655730).

Almost surely, 2^{120121111121202} is an apocalyptic number.

120121111121202 is an abundant number, since it is smaller than the sum of its proper divisors (146814691370478).

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

120121111121202 is a wasteful number, since it uses less digits than its factorization.

120121111121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224465020774 (or 2224465020768 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120121111121202 its reverse (202121111121021), we get a palindrome (322242222242223).

The spelling of 120121111121202 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, two hundred two".