211011010202001 has 4 divisors (see below), whose sum is σ = 281348013602672. Its totient is φ = 140674006801332.

The previous prime is 211011010201949. The next prime is 211011010202011. The reversal of 211011010202001 is 100202010110112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211011010202001 - 2¹⁵ = 211011010169233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211011010202011) 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, 35168501700331 + ... + 35168501700336.

It is an arithmetic number, because the mean of its divisors is an integer number (70337003400668).

Almost surely, 2^{211011010202001} is an apocalyptic number.

It is an amenable number.

211011010202001 is a deficient number, since it is larger than the sum of its proper divisors (70337003400671).

211011010202001 is an equidigital number, since it uses as much as digits as its factorization.

211011010202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70337003400670.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211011010202001 its reverse (100202010110112), we get a palindrome (311213020312113).

The spelling of 211011010202001 in words is "two hundred eleven trillion, eleven billion, ten million, two hundred two thousand, one".