4001101212021 has 32 divisors (see below), whose sum is σ = 5396398656000. Its totient is φ = 2636723855808.

The previous prime is 4001101212011. The next prime is 4001101212037. The reversal of 4001101212021 is 1202121011004.

It is not a de Polignac number, because 4001101212021 - 2¹³ = 4001101203829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001101212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308268510 + ... + 308281488.

It is an arithmetic number, because the mean of its divisors is an integer number (168637458000).

Almost surely, 2^{4001101212021} is an apocalyptic number.

It is an amenable number.

4001101212021 is a deficient number, since it is larger than the sum of its proper divisors (1395297443979).

4001101212021 is a wasteful number, since it uses less digits than its factorization.

4001101212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15233.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 4001101212021 its reverse (1202121011004), we get a palindrome (5203222223025).

The spelling of 4001101212021 in words is "four trillion, one billion, one hundred one million, two hundred twelve thousand, twenty-one".