121200111222202 has 16 divisors (see below), whose sum is σ = 181822411821024. Its totient is φ = 60592641102000.

The previous prime is 121200111222181. The next prime is 121200111222209. The reversal of 121200111222202 is 202222111002121.

It is a self number, because there is not a number n which added to its sum of digits gives 121200111222202.

It is not an unprimeable number, because it can be changed into a prime (121200111222209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578772577 + ... + 578981947.

It is an arithmetic number, because the mean of its divisors is an integer number (11363900738814).

Almost surely, 2^{121200111222202} is an apocalyptic number.

121200111222202 is a deficient number, since it is larger than the sum of its proper divisors (60622300598822).

121200111222202 is a wasteful number, since it uses less digits than its factorization.

121200111222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243405.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121200111222202 its reverse (202222111002121), we get a palindrome (323422222224323).

The spelling of 121200111222202 in words is "one hundred twenty-one trillion, two hundred billion, one hundred eleven million, two hundred twenty-two thousand, two hundred two".