1122211212011 has 8 divisors (see below), whose sum is σ = 1149617294448. Its totient is φ = 1094806800000.

The previous prime is 1122211211977. The next prime is 1122211212061. The reversal of 1122211212011 is 1102121122211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122211212011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122211212061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000511 + ... + 1801511.

It is an arithmetic number, because the mean of its divisors is an integer number (143702161806).

Almost surely, 2^{1122211212011} is an apocalyptic number.

1122211212011 is a deficient number, since it is larger than the sum of its proper divisors (27406082437).

1122211212011 is an equidigital number, since it uses as much as digits as its factorization.

1122211212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835213.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122211212011 its reverse (1102121122211), we get a palindrome (2224332334222).

The spelling of 1122211212011 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twelve thousand, eleven".