12111201010 has 16 divisors (see below), whose sum is σ = 21993085656. Its totient is φ = 4801608448.

The previous prime is 12111200963. The next prime is 12111201043. The reversal of 12111201010 is 1010211121.

It can be written as a sum of positive squares in 4 ways, for example, as 4428503209 + 7682697801 = 66547^2 + 87651^2 .

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 7 ways as a sum of consecutive naturals, for example, 5357809 + ... + 5360068.

Almost surely, 2^12111201010 is an apocalyptic number.

12111201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111201010 is a deficient number, since it is larger than the sum of its proper divisors (9881884646).

12111201010 is a wasteful number, since it uses less digits than its factorization.

12111201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717997.

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

Adding to 12111201010 its reverse (1010211121), we get a palindrome (13121412131).

The spelling of 12111201010 in words is "twelve billion, one hundred eleven million, two hundred one thousand, ten".