12222054212 has 6 divisors (see below), whose sum is σ = 21388594878. Its totient is φ = 6111027104.

The previous prime is 12222054211. The next prime is 12222054227. The reversal of 12222054212 is 21245022221.

It can be written as a sum of positive squares in only one way, i.e., 6861471556 + 5360582656 = 82834^2 + 73216^2 .

It is a super-4 number, since 4×12222054212⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12222054211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527756773 + ... + 1527756780.

It is an arithmetic number, because the mean of its divisors is an integer number (3564765813).

Almost surely, 2^12222054212 is an apocalyptic number.

It is an amenable number.

12222054212 is a deficient number, since it is larger than the sum of its proper divisors (9166540666).

12222054212 is a wasteful number, since it uses less digits than its factorization.

12222054212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055513557 (or 3055513555 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 12222054212 its reverse (21245022221), we get a palindrome (33467076433).

The spelling of 12222054212 in words is "twelve billion, two hundred twenty-two million, fifty-four thousand, two hundred twelve".