12210001012111 has 64 divisors (see below), whose sum is σ = 14934137702400. Its totient is φ = 9761987289600.

The previous prime is 12210001012039. The next prime is 12210001012127. The reversal of 12210001012111 is 11121010001221.

It is a happy number.

It is not a de Polignac number, because 12210001012111 - 2¹³ = 12210001003919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210001012091 and 12210001012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210001012151) 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, 619504125 + ... + 619523833.

It is an arithmetic number, because the mean of its divisors is an integer number (233345901600).

Almost surely, 2^{12210001012111} is an apocalyptic number.

12210001012111 is a deficient number, since it is larger than the sum of its proper divisors (2724136690289).

12210001012111 is a wasteful number, since it uses less digits than its factorization.

12210001012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20680.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12210001012111 its reverse (11121010001221), we get a palindrome (23331011013332).

The spelling of 12210001012111 in words is "twelve trillion, two hundred ten billion, one million, twelve thousand, one hundred eleven".