2021120212001 has 8 divisors (see below), whose sum is σ = 2205238172544. Its totient is φ = 1837065544720.

The previous prime is 2021120211917. The next prime is 2021120212073. The reversal of 2021120212001 is 1002120211202.

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 2021120212001 - 2¹⁴ = 2021120195617 is a prime.

It is a super-2 number, since 2×2021120212001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021120212081) 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, 15756530 + ... + 15884283.

It is an arithmetic number, because the mean of its divisors is an integer number (275654771568).

Almost surely, 2^{2021120212001} is an apocalyptic number.

It is an amenable number.

2021120212001 is a deficient number, since it is larger than the sum of its proper divisors (184117960543).

2021120212001 is a wasteful number, since it uses less digits than its factorization.

2021120212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31646631.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021120212001 its reverse (1002120211202), we get a palindrome (3023240423203).

The spelling of 2021120212001 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred twelve thousand, one".