1200111221210 has 32 divisors (see below), whose sum is σ = 2378202076800. Its totient is φ = 432400368960.

The previous prime is 1200111221173. The next prime is 1200111221213. The reversal of 1200111221210 is 121221110021.

It is not an unprimeable number, because it can be changed into a prime (1200111221213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50034350 + ... + 50058329.

It is an arithmetic number, because the mean of its divisors is an integer number (74318814900).

Almost surely, 2^{1200111221210} is an apocalyptic number.

1200111221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200111221210 is a deficient number, since it is larger than the sum of its proper divisors (1178090855590).

1200111221210 is a wasteful number, since it uses less digits than its factorization.

1200111221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100092806.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1200111221210 its reverse (121221110021), we get a palindrome (1321332331231).

It can be divided in two parts, 12001 and 11221210, that added together give a palindrome (11233211).

The spelling of 1200111221210 in words is "one trillion, two hundred billion, one hundred eleven million, two hundred twenty-one thousand, two hundred ten".