1012111220211 has 32 divisors (see below), whose sum is σ = 1705789682688. Its totient is φ = 519432186240.

The previous prime is 1012111220171. The next prime is 1012111220297. The reversal of 1012111220211 is 1120221112101.

It is a happy number.

It is not a de Polignac number, because 1012111220211 - 2⁷ = 1012111220083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012111220011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50089455 + ... + 50109656.

It is an arithmetic number, because the mean of its divisors is an integer number (53305927584).

Almost surely, 2^{1012111220211} is an apocalyptic number.

1012111220211 is a deficient number, since it is larger than the sum of its proper divisors (693678462477).

1012111220211 is a wasteful number, since it uses less digits than its factorization.

1012111220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100199171.

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

Adding to 1012111220211 its reverse (1120221112101), we get a palindrome (2132332332312).

The spelling of 1012111220211 in words is "one trillion, twelve billion, one hundred eleven million, two hundred twenty thousand, two hundred eleven".