12671022 has 64 divisors (see below), whose sum is σ = 32578560. Its totient is φ = 3193344.

The previous prime is 12671003. The next prime is 12671023. The reversal of 12671022 is 22017621.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12671022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12054 + ... + 13062.

It is an arithmetic number, because the mean of its divisors is an integer number (509040).

Almost surely, 2^12671022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12671022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16289280).

12671022 is an abundant number, since it is smaller than the sum of its proper divisors (19907538).

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

12671022 is a wasteful number, since it uses less digits than its factorization.

12671022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12671022 is about 3559.6379029334. The cubic root of 12671022 is about 233.1330694378.

Adding to 12671022 its reverse (22017621), we get a palindrome (34688643).

The spelling of 12671022 in words is "twelve million, six hundred seventy-one thousand, twenty-two".