11212122011210 has 64 divisors (see below), whose sum is σ = 20559839968800. Its totient is φ = 4401820910592.

The previous prime is 11212122011117. The next prime is 11212122011213. The reversal of 11212122011210 is 1211022121211.

It can be written as a sum of positive squares in 16 ways, for example, as 10679804392009 + 532317619201 = 3267997^2 + 729601^2 .

It is not an unprimeable number, because it can be changed into a prime (11212122011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49059164 + ... + 49287176.

Almost surely, 2^{11212122011210} is an apocalyptic number.

11212122011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212122011210 is a deficient number, since it is larger than the sum of its proper divisors (9347717957590).

11212122011210 is a wasteful number, since it uses less digits than its factorization.

11212122011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228555.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11212122011210 its reverse (1211022121211), we get a palindrome (12423144132421).

The spelling of 11212122011210 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, eleven thousand, two hundred ten".