12021110022 has 16 divisors (see below), whose sum is σ = 24088196160. Its totient is φ = 3999373992.

The previous prime is 12021109987. The next prime is 12021110027. The reversal of 12021110022 is 22001112021.

It is a super-2 number, since 2×12021110022² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021110027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1912272 + ... + 1918547.

It is an arithmetic number, because the mean of its divisors is an integer number (1505512260).

Almost surely, 2^12021110022 is an apocalyptic number.

12021110022 is an abundant number, since it is smaller than the sum of its proper divisors (12067086138).

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

12021110022 is a wasteful number, since it uses less digits than its factorization.

12021110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831347.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12021110022 its reverse (22001112021), we get a palindrome (34022222043).

The spelling of 12021110022 in words is "twelve billion, twenty-one million, one hundred ten thousand, twenty-two".