2021210122001 has 8 divisors (see below), whose sum is σ = 2320902078144. Its totient is φ = 1724255079120.

The previous prime is 2021210121991. The next prime is 2021210122039. The reversal of 2021210122001 is 1002210121202.

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

It is a de Polignac number, because none of the positive numbers 2^k-2021210122001 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 (2021210122051) 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, 684226730 + ... + 684229683.

It is an arithmetic number, because the mean of its divisors is an integer number (290112759768).

Almost surely, 2^{2021210122001} is an apocalyptic number.

It is an amenable number.

2021210122001 is a deficient number, since it is larger than the sum of its proper divisors (299691956143).

2021210122001 is a wasteful number, since it uses less digits than its factorization.

2021210122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368456631.

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

Adding to 2021210122001 its reverse (1002210121202), we get a palindrome (3023420243203).

The spelling of 2021210122001 in words is "two trillion, twenty-one billion, two hundred ten million, one hundred twenty-two thousand, one".