2212011121211 has 8 divisors (see below), whose sum is σ = 2311877961120. Its totient is φ = 2113716987648.

The previous prime is 2212011121207. The next prime is 2212011121213. The reversal of 2212011121211 is 1121211102122.

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

It is a cyclic number.

It is not a de Polignac number, because 2212011121211 - 2² = 2212011121207 is a prime.

It is a super-2 number, since 2×2212011121211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212011121211.

It is not an unprimeable number, because it can be changed into a prime (2212011121213) 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, 393173711 + ... + 393179336.

It is an arithmetic number, because the mean of its divisors is an integer number (288984745140).

Almost surely, 2^{2212011121211} is an apocalyptic number.

2212011121211 is a deficient number, since it is larger than the sum of its proper divisors (99866839909).

2212011121211 is an equidigital number, since it uses as much as digits as its factorization.

2212011121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786353173.

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

Adding to 2212011121211 its reverse (1121211102122), we get a palindrome (3333222223333).

The spelling of 2212011121211 in words is "two trillion, two hundred twelve billion, eleven million, one hundred twenty-one thousand, two hundred eleven".