11112121111210 has 64 divisors (see below), whose sum is σ = 22940114706432. Its totient is φ = 3796411208256.

The previous prime is 11112121111193. The next prime is 11112121111243. The reversal of 11112121111210 is 1211112121111.

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, 22536979 + ... + 23024761.

It is an arithmetic number, because the mean of its divisors is an integer number (358439292288).

Almost surely, 2^{11112121111210} is an apocalyptic number.

11112121111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112121111210 is an abundant number, since it is smaller than the sum of its proper divisors (11827993595222).

11112121111210 is a wasteful number, since it uses less digits than its factorization.

11112121111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488947.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11112121111210 its reverse (1211112121111), we get a palindrome (12323233232321).

The spelling of 11112121111210 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, two hundred ten".