1201122220110 has 32 divisors (see below), whose sum is σ = 2982096548640. Its totient is φ = 309254456448.

The previous prime is 1201122220061. The next prime is 1201122220121. The reversal of 1201122220110 is 110222211021.

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 1201122220110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690299257 + ... + 690300996.

It is an arithmetic number, because the mean of its divisors is an integer number (93190517145).

Almost surely, 2^{1201122220110} is an apocalyptic number.

1201122220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201122220110 is an abundant number, since it is smaller than the sum of its proper divisors (1780974328530).

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

1201122220110 is a wasteful number, since it uses less digits than its factorization.

1201122220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380600292.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1201122220110 its reverse (110222211021), we get a palindrome (1311344431131).

The spelling of 1201122220110 in words is "one trillion, two hundred one billion, one hundred twenty-two million, two hundred twenty thousand, one hundred ten".