22102012121222 has 16 divisors (see below), whose sum is σ = 36504937611072. Its totient is φ = 9952477844520.

The previous prime is 22102012121197. The next prime is 22102012121251. The reversal of 22102012121222 is 22212121020122.

It is a junction number, because it is equal to n+sod(n) for n = 22102012121194 and 22102012121203.

It is a congruent number.

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, 4694562668 + ... + 4694567375.

It is an arithmetic number, because the mean of its divisors is an integer number (2281558600692).

Almost surely, 2^{22102012121222} is an apocalyptic number.

22102012121222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22102012121222 is a deficient number, since it is larger than the sum of its proper divisors (14402925489850).

22102012121222 is a wasteful number, since it uses less digits than its factorization.

22102012121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9389130163.

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

Adding to 22102012121222 its reverse (22212121020122), we get a palindrome (44314133141344).

The spelling of 22102012121222 in words is "twenty-two trillion, one hundred two billion, twelve million, one hundred twenty-one thousand, two hundred twenty-two".