11211112201210 has 32 divisors (see below), whose sum is σ = 20629381523472. Its totient is φ = 4385432647680.

The previous prime is 11211112201193. The next prime is 11211112201231. The reversal of 11211112201210 is 1210221111211.

It can be written as a sum of positive squares in 8 ways, for example, as 1318898355489 + 9892213845721 = 1148433^2 + 3145189^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53012599 + ... + 53223658.

Almost surely, 2^{11211112201210} is an apocalyptic number.

11211112201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211112201210 is a deficient number, since it is larger than the sum of its proper divisors (9418269322262).

11211112201210 is a wasteful number, since it uses less digits than its factorization.

11211112201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106236498.

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

Adding to 11211112201210 its reverse (1210221111211), we get a palindrome (12421333312421).

The spelling of 11211112201210 in words is "eleven trillion, two hundred eleven billion, one hundred twelve million, two hundred one thousand, two hundred ten".