211201001101 has 2 divisors, whose sum is σ = 211201001102. Its totient is φ = 211201001100.

The previous prime is 211201001029. The next prime is 211201001131. The reversal of 211201001101 is 101100102112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139644216100 + 71556785001 = 373690^2 + 267501^2 .

It is a cyclic number.

It is not a de Polignac number, because 211201001101 - 2²³ = 211192612493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211201001131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600500550 + 105600500551.

It is an arithmetic number, because the mean of its divisors is an integer number (105600500551).

Almost surely, 2^211201001101 is an apocalyptic number.

It is an amenable number.

211201001101 is a deficient number, since it is larger than the sum of its proper divisors (1).

211201001101 is an equidigital number, since it uses as much as digits as its factorization.

211201001101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 211201001101 its reverse (101100102112), we get a palindrome (312301103213).

The spelling of 211201001101 in words is "two hundred eleven billion, two hundred one million, one thousand, one hundred one".