11212121102110 has 64 divisors (see below), whose sum is σ = 21324496907520. Its totient is φ = 4237560391680.

The previous prime is 11212121102101. The next prime is 11212121102137. The reversal of 11212121102110 is 1120112121211.

It is a super-2 number, since 2×11212121102110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125910322 + ... + 125999338.

It is an arithmetic number, because the mean of its divisors is an integer number (333195264180).

Almost surely, 2^{11212121102110} is an apocalyptic number.

11212121102110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212121102110 is a deficient number, since it is larger than the sum of its proper divisors (10112375805410).

11212121102110 is a wasteful number, since it uses less digits than its factorization.

11212121102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98341.

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

Adding to 11212121102110 its reverse (1120112121211), we get a palindrome (12332233223321).

The spelling of 11212121102110 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-one million, one hundred two thousand, one hundred ten".