1021111121110 has 8 divisors (see below), whose sum is σ = 1838000018016. Its totient is φ = 408444448440.

The previous prime is 1021111121101. The next prime is 1021111121131. The reversal of 1021111121110 is 111211111201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51055556046 + ... + 51055556065.

It is an arithmetic number, because the mean of its divisors is an integer number (229750002252).

Almost surely, 2^{1021111121110} is an apocalyptic number.

1021111121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021111121110 is a deficient number, since it is larger than the sum of its proper divisors (816888896906).

1021111121110 is a wasteful number, since it uses less digits than its factorization.

1021111121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102111112118.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1021111121110 its reverse (111211111201), we get a palindrome (1132322232311).

Subtracting from 1021111121110 its reverse (111211111201), we obtain a palindrome (909900009909).

It can be divided in two parts, 102111 and 1121110, that added together give a palindrome (1223221).

The spelling of 1021111121110 in words is "one trillion, twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred ten".