22101121220222 has 48 divisors (see below), whose sum is σ = 37210806425520. Its totient is φ = 9834165918720.

The previous prime is 22101121220219. The next prime is 22101121220249. The reversal of 22101121220222 is 22202212110122.

It is a junction number, because it is equal to n+sod(n) for n = 22101121220194 and 22101121220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3737054 + ... + 7626782.

It is an arithmetic number, because the mean of its divisors is an integer number (775225133865).

Almost surely, 2^{22101121220222} is an apocalyptic number.

22101121220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22101121220222 is a deficient number, since it is larger than the sum of its proper divisors (15109685205298).

22101121220222 is a wasteful number, since it uses less digits than its factorization.

22101121220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890249 (or 3890238 counting only the distinct ones).

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

Adding to 22101121220222 its reverse (22202212110122), we get a palindrome (44303333330344).

The spelling of 22101121220222 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".