121112112120202 has 32 divisors (see below), whose sum is σ = 214224187903488. Its totient is φ = 50277105271296.

The previous prime is 121112112120169. The next prime is 121112112120217. The reversal of 121112112120202 is 202021211211121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121112112120202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 948704013 + ... + 948831664.

It is an arithmetic number, because the mean of its divisors is an integer number (6694505871984).

Almost surely, 2^{121112112120202} is an apocalyptic number.

121112112120202 is a deficient number, since it is larger than the sum of its proper divisors (93112075783286).

121112112120202 is a wasteful number, since it uses less digits than its factorization.

121112112120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897535830.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121112112120202 its reverse (202021211211121), we get a palindrome (323133323331323).

The spelling of 121112112120202 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twelve million, one hundred twenty thousand, two hundred two".