211102020212 has 24 divisors (see below), whose sum is σ = 374433323880. Its totient is φ = 104128617600.

The previous prime is 211102020191. The next prime is 211102020247. The reversal of 211102020212 is 212020201112.

It can be written as a sum of positive squares in 4 ways, for example, as 45260860516 + 165841159696 = 212746^2 + 407236^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831287 + ... + 1055102.

It is an arithmetic number, because the mean of its divisors is an integer number (15601388495).

Almost surely, 2^211102020212 is an apocalyptic number.

It is an amenable number.

211102020212 is a deficient number, since it is larger than the sum of its proper divisors (163331303668).

211102020212 is a wasteful number, since it uses less digits than its factorization.

211102020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886771 (or 1886769 counting only the distinct ones).

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

Adding to 211102020212 its reverse (212020201112), we get a palindrome (423122221324).

The spelling of 211102020212 in words is "two hundred eleven billion, one hundred two million, twenty thousand, two hundred twelve".