211020122011201 has 4 divisors (see below), whose sum is σ = 211126002656452. Its totient is φ = 210914241365952.

The previous prime is 211020122011103. The next prime is 211020122011207. The reversal of 211020122011201 is 102110221020112.

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 81825050318400 + 129195071692801 = 9045720^2 + 11366401^2 .

It is a cyclic number.

It is not a de Polignac number, because 211020122011201 - 2⁷ = 211020122011073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211020122011207) 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, 52940319636 + ... + 52940323621.

It is an arithmetic number, because the mean of its divisors is an integer number (52781500664113).

Almost surely, 2^{211020122011201} is an apocalyptic number.

It is an amenable number.

211020122011201 is a deficient number, since it is larger than the sum of its proper divisors (105880645251).

211020122011201 is a wasteful number, since it uses less digits than its factorization.

211020122011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105880645250.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211020122011201 its reverse (102110221020112), we get a palindrome (313130343031313).

It can be divided in two parts, 211020 and 122011201, that added together give a palindrome (122222221).

The spelling of 211020122011201 in words is "two hundred eleven trillion, twenty billion, one hundred twenty-two million, eleven thousand, two hundred one".