1100212122111 has 16 divisors (see below), whose sum is σ = 1540479796224. Its totient is φ = 697115843424.

The previous prime is 1100212122101. The next prime is 1100212122143. The reversal of 1100212122111 is 1112212120011.

It is a happy number.

It is not a de Polignac number, because 1100212122111 - 2⁹ = 1100212121599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100212122101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50769751 + ... + 50791416.

It is an arithmetic number, because the mean of its divisors is an integer number (96279987264).

Almost surely, 2^{1100212122111} is an apocalyptic number.

1100212122111 is a deficient number, since it is larger than the sum of its proper divisors (440267674113).

1100212122111 is a wasteful number, since it uses less digits than its factorization.

1100212122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101561350.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1100212122111 its reverse (1112212120011), we get a palindrome (2212424242122).

The spelling of 1100212122111 in words is "one trillion, one hundred billion, two hundred twelve million, one hundred twenty-two thousand, one hundred eleven".