12111000021010 has 32 divisors (see below), whose sum is σ = 23782062713472. Its totient is φ = 4403914327680.

The previous prime is 12111000021007. The next prime is 12111000021073. The reversal of 12111000021010 is 1012000011121.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 4752019 + ... + 6841321.

It is an arithmetic number, because the mean of its divisors is an integer number (743189459796).

Almost surely, 2^{12111000021010} is an apocalyptic number.

12111000021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111000021010 is a deficient number, since it is larger than the sum of its proper divisors (11671062692462).

12111000021010 is a wasteful number, since it uses less digits than its factorization.

12111000021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142018.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12111000021010 its reverse (1012000011121), we get a palindrome (13123000032131).

The spelling of 12111000021010 in words is "twelve trillion, one hundred eleven billion, twenty-one thousand, ten".