4042122401020 has 48 divisors (see below), whose sum is σ = 9386986156128. Its totient is φ = 1449727580160.

The previous prime is 4042122400951. The next prime is 4042122401027. The reversal of 4042122401020 is 201042212404.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 4042122400982 and 4042122401000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042122401027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125828349 + ... + 125860468.

It is an arithmetic number, because the mean of its divisors is an integer number (195562211586).

Almost surely, 2^{4042122401020} is an apocalyptic number.

It is an amenable number.

4042122401020 is an abundant number, since it is smaller than the sum of its proper divisors (5344863755108).

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

4042122401020 is a wasteful number, since it uses less digits than its factorization.

4042122401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251688910 (or 251688908 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 4042122401020 its reverse (201042212404), we get a palindrome (4243164613424).

The spelling of 4042122401020 in words is "four trillion, forty-two billion, one hundred twenty-two million, four hundred one thousand, twenty".