202122011020001 has 4 divisors (see below), whose sum is σ = 204123219050004. Its totient is φ = 200120802990000.

The previous prime is 202122011019917. The next prime is 202122011020009. The reversal of 202122011020001 is 100020110221202.

202122011020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82220934515776 + 119901076504225 = 9067576^2 + 10949935^2 .

It is a cyclic number.

It is not a de Polignac number, because 202122011020001 - 2¹⁴ = 202122011003617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202122011020009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000604014850 + ... + 1000604015051.

It is an arithmetic number, because the mean of its divisors is an integer number (51030804762501).

Almost surely, 2^{202122011020001} is an apocalyptic number.

It is an amenable number.

202122011020001 is a deficient number, since it is larger than the sum of its proper divisors (2001208030003).

202122011020001 is a wasteful number, since it uses less digits than its factorization.

202122011020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001208030002.

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

Adding to 202122011020001 its reverse (100020110221202), we get a palindrome (302142121241203).

The spelling of 202122011020001 in words is "two hundred two trillion, one hundred twenty-two billion, eleven million, twenty thousand, one".