12010111101021 has 64 divisors (see below), whose sum is σ = 17844521999616. Its totient is φ = 7124063846400.

The previous prime is 12010111100957. The next prime is 12010111101031.

12010111101021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12010111101021 - 2⁶ = 12010111100957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010111100988 and 12010111101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010111101031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1193724331 + ... + 1193734391.

It is an arithmetic number, because the mean of its divisors is an integer number (278820656244).

Almost surely, 2^{12010111101021} is an apocalyptic number.

12010111101021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12010111101021 is a deficient number, since it is larger than the sum of its proper divisors (5834410898595).

12010111101021 is a wasteful number, since it uses less digits than its factorization.

12010111101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13902.

The product of its (nonzero) digits is 4, while the sum is 12.

It can be divided in two parts, 1201011 and 1101021, that multiplied together give a palindrome (1322338332231).

The spelling of 12010111101021 in words is "twelve trillion, ten billion, one hundred eleven million, one hundred one thousand, twenty-one".