1022111212211 has 2 divisors, whose sum is σ = 1022111212212. Its totient is φ = 1022111212210.

The previous prime is 1022111212193. The next prime is 1022111212223. The reversal of 1022111212211 is 1122121112201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022111212211 is a prime.

It is a super-2 number, since 2×1022111212211² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022111212211.

It is not a weakly prime, because it can be changed into another prime (1022117212211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511055606105 + 511055606106.

It is an arithmetic number, because the mean of its divisors is an integer number (511055606106).

Almost surely, 2^{1022111212211} is an apocalyptic number.

1022111212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022111212211 is an equidigital number, since it uses as much as digits as its factorization.

1022111212211 is an evil number, because the sum of its binary digits is even.

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

Adding to 1022111212211 its reverse (1122121112201), we get a palindrome (2144232324412).

The spelling of 1022111212211 in words is "one trillion, twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred eleven".