11211112102 has 8 divisors (see below), whose sum is σ = 16904714112. Its totient is φ = 5576207400.

The previous prime is 11211112097. The next prime is 11211112139. The reversal of 11211112102 is 20121111211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11211112102² (a number of 21 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 3 ways as a sum of consecutive naturals, for example, 14673849 + ... + 14674612.

It is an arithmetic number, because the mean of its divisors is an integer number (2113089264).

Almost surely, 2^11211112102 is an apocalyptic number.

11211112102 is a deficient number, since it is larger than the sum of its proper divisors (5693602010).

11211112102 is a wasteful number, since it uses less digits than its factorization.

11211112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29348654.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11211112102 its reverse (20121111211), we get a palindrome (31332223313).

The spelling of 11211112102 in words is "eleven billion, two hundred eleven million, one hundred twelve thousand, one hundred two".