12212202011222 has 16 divisors (see below), whose sum is σ = 18909719194752. Its totient is φ = 5908972762560.

The previous prime is 12212202011221. The next prime is 12212202011237. The reversal of 12212202011222 is 22211020221221.

It is a junction number, because it is equal to n+sod(n) for n = 12212202011194 and 12212202011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212202011221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254903 + ... + 4948674.

It is an arithmetic number, because the mean of its divisors is an integer number (1181857449672).

Almost surely, 2^{12212202011222} is an apocalyptic number.

12212202011222 is a deficient number, since it is larger than the sum of its proper divisors (6697517183530).

12212202011222 is a wasteful number, since it uses less digits than its factorization.

12212202011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241463.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12212202011222 its reverse (22211020221221), we get a palindrome (34423222232443).

The spelling of 12212202011222 in words is "twelve trillion, two hundred twelve billion, two hundred two million, eleven thousand, two hundred twenty-two".