4022012023420 has 24 divisors (see below), whose sum is σ = 8674501608864. Its totient is φ = 1565323598016.

The previous prime is 4022012023399. The next prime is 4022012023423. The reversal of 4022012023420 is 243202102204.

It is a junction number, because it is equal to n+sod(n) for n = 4022012023391 and 4022012023400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022012023423) 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, 2717574952 + ... + 2717576431.

It is an arithmetic number, because the mean of its divisors is an integer number (361437567036).

Almost surely, 2^{4022012023420} is an apocalyptic number.

It is an amenable number.

4022012023420 is an abundant number, since it is smaller than the sum of its proper divisors (4652489585444).

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

4022012023420 is a wasteful number, since it uses less digits than its factorization.

4022012023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435151429 (or 5435151427 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 4022012023420 its reverse (243202102204), we get a palindrome (4265214125624).

The spelling of 4022012023420 in words is "four trillion, twenty-two billion, twelve million, twenty-three thousand, four hundred twenty".