12221011012194 has 24 divisors (see below), whose sum is σ = 27630111854592. Its totient is φ = 3896554235640.

The previous prime is 12221011012193. The next prime is 12221011012207. The reversal of 12221011012194 is 49121011012221.

12221011012194 is a `hidden beast` number, since 122 + 210 + 110 + 1 + 219 + 4 = 666.

It is a super-2 number, since 2×12221011012194² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12221011012193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14759674722 + ... + 14759675549.

It is an arithmetic number, because the mean of its divisors is an integer number (1151254660608).

Almost surely, 2^{12221011012194} is an apocalyptic number.

12221011012194 is an abundant number, since it is smaller than the sum of its proper divisors (15409100842398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221011012194 is a wasteful number, since it uses less digits than its factorization.

12221011012194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29519350302 (or 29519350299 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

Adding to 12221011012194 its sum of digits (27), we get a palindrome (12221011012221).

The spelling of 12221011012194 in words is "twelve trillion, two hundred twenty-one billion, eleven million, twelve thousand, one hundred ninety-four".