200120111221110 has 64 divisors (see below), whose sum is σ = 507365766558720. Its totient is φ = 50376742698240.

The previous prime is 200120111221109. The next prime is 200120111221169. The reversal of 200120111221110 is 11122111021002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200120111221110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 624551422 + ... + 624871761.

It is an arithmetic number, because the mean of its divisors is an integer number (7927590102480).

Almost surely, 2^{200120111221110} is an apocalyptic number.

200120111221110 is an abundant number, since it is smaller than the sum of its proper divisors (307245655337610).

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

200120111221110 is a wasteful number, since it uses less digits than its factorization.

200120111221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249423493.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 200120111221110 its reverse (11122111021002), we get a palindrome (211242222242112).

The spelling of 200120111221110 in words is "two hundred trillion, one hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, one hundred ten".