12101022 has 32 divisors (see below), whose sum is σ = 27021600. Its totient is φ = 4014144.

The previous prime is 12101021. The next prime is 12101053. The reversal of 12101022 is 22010121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12100995 and 12101013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14554 + ... + 15362.

It is an arithmetic number, because the mean of its divisors is an integer number (844425).

Almost surely, 2^12101022 is an apocalyptic number.

12101022 is an abundant number, since it is smaller than the sum of its proper divisors (14920578).

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

12101022 is a wasteful number, since it uses less digits than its factorization.

12101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12101022 is about 3478.6523252547. The cubic root of 12101022 is about 229.5835058586.

Adding to 12101022 its reverse (22010121), we get a palindrome (34111143).

Subtracting 12101022 from its reverse (22010121), we obtain a palindrome (9909099).

The spelling of 12101022 in words is "twelve million, one hundred one thousand, twenty-two".