12221010213111 has 16 divisors (see below), whose sum is σ = 20691657504000. Its totient is φ = 6983434407384.

The previous prime is 12221010213089. The next prime is 12221010213143. The reversal of 12221010213111 is 11131201012221.

It is a happy number.

12221010213111 is a `hidden beast` number, since 122 + 210 + 1 + 0 + 21 + 311 + 1 = 666.

It is not a de Polignac number, because 12221010213111 - 2¹⁵ = 12221010180343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221010223111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32330714661 + ... + 32330715038.

It is an arithmetic number, because the mean of its divisors is an integer number (1293228594000).

Almost surely, 2^{12221010213111} is an apocalyptic number.

12221010213111 is a deficient number, since it is larger than the sum of its proper divisors (8470647290889).

12221010213111 is an equidigital number, since it uses as much as digits as its factorization.

12221010213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64661429715 (or 64661429709 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12221010213111 its reverse (11131201012221), we get a palindrome (23352211225332).

The spelling of 12221010213111 in words is "twelve trillion, two hundred twenty-one billion, ten million, two hundred thirteen thousand, one hundred eleven".