10221112111122 has 48 divisors (see below), whose sum is σ = 24720829312608. Its totient is φ = 3025276309440.

The previous prime is 10221112111097. The next prime is 10221112111129. The reversal of 10221112111122 is 22111121112201.

It is a happy number.

It is a super-2 number, since 2×10221112111122² (a number of 27 digits) contains 22 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 = 10221112111095 and 10221112111104.

It is not an unprimeable number, because it can be changed into a prime (10221112111129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 600244723 + ... + 600261750.

It is an arithmetic number, because the mean of its divisors is an integer number (515017277346).

Almost surely, 2^{10221112111122} is an apocalyptic number.

10221112111122 is an abundant number, since it is smaller than the sum of its proper divisors (14499717201486).

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

10221112111122 is a wasteful number, since it uses less digits than its factorization.

10221112111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200506535 (or 1200506532 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 10221112111122 its reverse (22111121112201), we get a palindrome (32332233223323).

The spelling of 10221112111122 in words is "ten trillion, two hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-two".