1101212112211 has 4 divisors (see below), whose sum is σ = 1101214221712. Its totient is φ = 1101210002712.

The previous prime is 1101212112163. The next prime is 1101212112223. The reversal of 1101212112211 is 1122112121011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101212112211 - 2²⁵ = 1101178557779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101212112251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368026 + ... + 1529008.

It is an arithmetic number, because the mean of its divisors is an integer number (275303555428).

Almost surely, 2^{1101212112211} is an apocalyptic number.

1101212112211 is a deficient number, since it is larger than the sum of its proper divisors (2109501).

1101212112211 is an equidigital number, since it uses as much as digits as its factorization.

1101212112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109500.

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

Adding to 1101212112211 its reverse (1122112121011), we get a palindrome (2223324233222).

The spelling of 1101212112211 in words is "one trillion, one hundred one billion, two hundred twelve million, one hundred twelve thousand, two hundred eleven".