4012554023220 has 48 divisors (see below), whose sum is σ = 11235394735488. Its totient is φ = 1069991218560.

The previous prime is 4012554023213. The next prime is 4012554023243. The reversal of 4012554023220 is 223204552104.

It is a super-2 number, since 2×4012554023220² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2162265 + ... + 3563775.

It is an arithmetic number, because the mean of its divisors is an integer number (234070723656).

Almost surely, 2^{4012554023220} is an apocalyptic number.

It is an amenable number.

4012554023220 is an abundant number, since it is smaller than the sum of its proper divisors (7222840712268).

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

4012554023220 is a wasteful number, since it uses less digits than its factorization.

4012554023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449240 (or 1449238 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 4012554023220 its reverse (223204552104), we get a palindrome (4235758575324).

The spelling of 4012554023220 in words is "four trillion, twelve billion, five hundred fifty-four million, twenty-three thousand, two hundred twenty".