4002412101021 has 8 divisors (see below), whose sum is σ = 5929499408960. Its totient is φ = 2668274733996.

The previous prime is 4002412101013. The next prime is 4002412101071. The reversal of 4002412101021 is 1201012142004.

4002412101021 is a `hidden beast` number, since 400 + 2 + 41 + 210 + 10 + 2 + 1 = 666.

It is not a de Polignac number, because 4002412101021 - 2³ = 4002412101013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4002412100985 and 4002412101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002412101001) 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, 74118742585 + ... + 74118742638.

It is an arithmetic number, because the mean of its divisors is an integer number (741187426120).

Almost surely, 2^{4002412101021} is an apocalyptic number.

It is an amenable number.

4002412101021 is a deficient number, since it is larger than the sum of its proper divisors (1927087307939).

4002412101021 is a wasteful number, since it uses less digits than its factorization.

4002412101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148237485232 (or 148237485226 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 4002412101021 its reverse (1201012142004), we get a palindrome (5203424243025).

The spelling of 4002412101021 in words is "four trillion, two billion, four hundred twelve million, one hundred one thousand, twenty-one".