1021121112110 has 32 divisors (see below), whose sum is σ = 2007658507392. Its totient is φ = 370844923680.

The previous prime is 1021121112061. The next prime is 1021121112169. The reversal of 1021121112110 is 112111211201.

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, 5811092 + ... + 5984231.

It is an arithmetic number, because the mean of its divisors is an integer number (62739328356).

Almost surely, 2^{1021121112110} is an apocalyptic number.

1021121112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021121112110 is a deficient number, since it is larger than the sum of its proper divisors (986537395282).

1021121112110 is a wasteful number, since it uses less digits than its factorization.

1021121112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11796128.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1021121112110 its reverse (112111211201), we get a palindrome (1133232323311).

Subtracting from 1021121112110 its reverse (112111211201), we obtain a palindrome (909009900909).

The spelling of 1021121112110 in words is "one trillion, twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, one hundred ten".