12221010212222 has 12 divisors (see below), whose sum is σ = 21324415778640. Its totient is φ = 5237575805196.

The previous prime is 12221010212209. The next prime is 12221010212233. The reversal of 12221010212222 is 22221201012221.

It is a junction number, because it is equal to n+sod(n) for n = 12221010212194 and 12221010212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62352092822 + ... + 62352093017.

It is an arithmetic number, because the mean of its divisors is an integer number (1777034648220).

Almost surely, 2^{12221010212222} is an apocalyptic number.

12221010212222 is a deficient number, since it is larger than the sum of its proper divisors (9103405566418).

12221010212222 is a wasteful number, since it uses less digits than its factorization.

12221010212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124704185855 (or 124704185848 counting only the distinct ones).

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

Adding to 12221010212222 its reverse (22221201012221), we get a palindrome (34442211224443).

The spelling of 12221010212222 in words is "twelve trillion, two hundred twenty-one billion, ten million, two hundred twelve thousand, two hundred twenty-two".