1121221211110 has 256 divisors, whose sum is σ = 2880657561600. Its totient is φ = 302579712000.

The previous prime is 1121221211101. The next prime is 1121221211213. The reversal of 1121221211110 is 111121221211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19180006 + ... + 19238374.

It is an arithmetic number, because the mean of its divisors is an integer number (11252568600).

Almost surely, 2^{1121221211110} is an apocalyptic number.

1121221211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121221211110 is an abundant number, since it is smaller than the sum of its proper divisors (1759436350490).

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

1121221211110 is a wasteful number, since it uses less digits than its factorization.

1121221211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58527.

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

Adding to 1121221211110 its reverse (111121221211), we get a palindrome (1232342432321).

It can be divided in two parts, 1121221 and 211110, that added together give a palindrome (1332331).

The spelling of 1121221211110 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred eleven thousand, one hundred ten".