72921202120001 has 8 divisors (see below), whose sum is σ = 73065466314240. Its totient is φ = 72776941850448.

The previous prime is 72921202119967. The next prime is 72921202120037. The reversal of 72921202120001 is 10002120212927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72921202120001 - 2³⁰ = 72920128378177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72921262120001) 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, 37724270 + ... + 39610136.

It is an arithmetic number, because the mean of its divisors is an integer number (9133183289280).

Almost surely, 2^{72921202120001} is an apocalyptic number.

It is an amenable number.

72921202120001 is a deficient number, since it is larger than the sum of its proper divisors (144264194239).

72921202120001 is a wasteful number, since it uses less digits than its factorization.

72921202120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962343.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 72921202120001 its reverse (10002120212927), we get a palindrome (82923322332928).

The spelling of 72921202120001 in words is "seventy-two trillion, nine hundred twenty-one billion, two hundred two million, one hundred twenty thousand, one".