211022020001 has 4 divisors (see below), whose sum is σ = 227254483092. Its totient is φ = 194789556912.

The previous prime is 211022019961. The next prime is 211022020009. The reversal of 211022020001 is 100020220112.

It is a happy number.

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 131461355776 + 79560664225 = 362576^2 + 282065^2 .

It is a cyclic number.

It is not a de Polignac number, because 211022020001 - 2⁶ = 211022019937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211022020009) 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, 8116231526 + ... + 8116231551.

It is an arithmetic number, because the mean of its divisors is an integer number (56813620773).

Almost surely, 2^211022020001 is an apocalyptic number.

It is an amenable number.

211022020001 is a deficient number, since it is larger than the sum of its proper divisors (16232463091).

211022020001 is a wasteful number, since it uses less digits than its factorization.

211022020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16232463090.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 211022020001 its reverse (100020220112), we get a palindrome (311042240113).

The spelling of 211022020001 in words is "two hundred eleven billion, twenty-two million, twenty thousand, one".