12145025022 has 16 divisors (see below), whose sum is σ = 26158515600. Its totient is φ = 3736930752.

The previous prime is 12145024999. The next prime is 12145025027. The reversal of 12145025022 is 22052054121.

It is a super-2 number, since 2×12145025022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12145024983 and 12145025001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145025027) 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, 77852647 + ... + 77852802.

It is an arithmetic number, because the mean of its divisors is an integer number (1634907225).

Almost surely, 2^12145025022 is an apocalyptic number.

12145025022 is an abundant number, since it is smaller than the sum of its proper divisors (14013490578).

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

12145025022 is a wasteful number, since it uses less digits than its factorization.

12145025022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155705467.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 12145025022 its reverse (22052054121), we get a palindrome (34197079143).

The spelling of 12145025022 in words is "twelve billion, one hundred forty-five million, twenty-five thousand, twenty-two".