12212202221122 has 16 divisors (see below), whose sum is σ = 18975202012800. Its totient is φ = 5887695618000.

The previous prime is 12212202221081. The next prime is 12212202221183. The reversal of 12212202221122 is 22112220221221.

It is a super-2 number, since 2×12212202221122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212202221093 and 12212202221102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140139672 + ... + 140226787.

It is an arithmetic number, because the mean of its divisors is an integer number (1185950125800).

Almost surely, 2^{12212202221122} is an apocalyptic number.

12212202221122 is a deficient number, since it is larger than the sum of its proper divisors (6762999791678).

12212202221122 is a wasteful number, since it uses less digits than its factorization.

12212202221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280367241.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12212202221122 its reverse (22112220221221), we get a palindrome (34324422442343).

The spelling of 12212202221122 in words is "twelve trillion, two hundred twelve billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-two".