11111121112010 has 32 divisors (see below), whose sum is σ = 21394804006800. Its totient is φ = 4139886477312.

The previous prime is 11111121111989. The next prime is 11111121112043. The reversal of 11111121112010 is 1021112111111.

It can be written as a sum of positive squares in 8 ways, for example, as 6211614120721 + 4899506991289 = 2492311^2 + 2213483^2 .

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, 336888335 + ... + 336921314.

Almost surely, 2^{11111121112010} is an apocalyptic number.

11111121112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111121112010 is a deficient number, since it is larger than the sum of its proper divisors (10283682894790).

11111121112010 is a wasteful number, since it uses less digits than its factorization.

11111121112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673809770.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11111121112010 its reverse (1021112111111), we get a palindrome (12132233223121).

The spelling of 11111121112010 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twelve thousand, ten".