12420214422040 has 64 divisors (see below), whose sum is σ = 28659482726400. Its totient is φ = 4842036947328.

The previous prime is 12420214421987. The next prime is 12420214422107. The reversal of 12420214422040 is 4022441202421.

It is a happy number.

It is a super-2 number, since 2×12420214422040² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13371804 + ... + 14270443.

It is an arithmetic number, because the mean of its divisors is an integer number (447804417600).

Almost surely, 2^{12420214422040} is an apocalyptic number.

12420214422040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12420214422040 is an abundant number, since it is smaller than the sum of its proper divisors (16239268304360).

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

12420214422040 is a wasteful number, since it uses less digits than its factorization.

12420214422040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27642544 (or 27642540 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 12420214422040 its reverse (4022441202421), we get a palindrome (16442655624461).

The spelling of 12420214422040 in words is "twelve trillion, four hundred twenty billion, two hundred fourteen million, four hundred twenty-two thousand, forty".