12266021042 has 16 divisors (see below), whose sum is σ = 20073420864. Its totient is φ = 5574978000.

The previous prime is 12266021041. The next prime is 12266021113. The reversal of 12266021042 is 24012066221.

It is not an unprimeable number, because it can be changed into a prime (12266021041) 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, 392867 + ... + 422937.

It is an arithmetic number, because the mean of its divisors is an integer number (1254588804).

Almost surely, 2^12266021042 is an apocalyptic number.

12266021042 is a deficient number, since it is larger than the sum of its proper divisors (7807399822).

12266021042 is a wasteful number, since it uses less digits than its factorization.

12266021042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48625.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 12266021042 its reverse (24012066221), we get a palindrome (36278087263).

The spelling of 12266021042 in words is "twelve billion, two hundred sixty-six million, twenty-one thousand, forty-two".