10221012012222 has 48 divisors (see below), whose sum is σ = 24430202400240. Its totient is φ = 3062475504000.

The previous prime is 10221012012203. The next prime is 10221012012229. The reversal of 10221012012222 is 22221021012201.

It is a happy number.

10221012012222 is a `hidden beast` number, since 102 + 210 + 120 + 12 + 222 = 666.

It is a super-3 number, since 3×10221012012222³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10221012012195 and 10221012012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221012012229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289989529 + ... + 290024772.

It is an arithmetic number, because the mean of its divisors is an integer number (508962550005).

Almost surely, 2^{10221012012222} is an apocalyptic number.

10221012012222 is an abundant number, since it is smaller than the sum of its proper divisors (14209190388018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221012012222 is a wasteful number, since it uses less digits than its factorization.

10221012012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580014409 (or 580014406 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10221012012222 its reverse (22221021012201), we get a palindrome (32442033024423).

The spelling of 10221012012222 in words is "ten trillion, two hundred twenty-one billion, twelve million, twelve thousand, two hundred twenty-two".