1012211012211 has 16 divisors (see below), whose sum is σ = 1567702303488. Its totient is φ = 568924221600.

The previous prime is 1012211012191. The next prime is 1012211012303. The reversal of 1012211012211 is 1122101122101.

It is a happy number.

It is not a de Polignac number, because 1012211012211 - 2¹³ = 1012211004019 is a prime.

It is a super-2 number, since 2×1012211012211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012211012711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395084985 + ... + 395087546.

It is an arithmetic number, because the mean of its divisors is an integer number (97981393968).

Almost surely, 2^{1012211012211} is an apocalyptic number.

1012211012211 is a deficient number, since it is larger than the sum of its proper divisors (555491291277).

1012211012211 is an equidigital number, since it uses as much as digits as its factorization.

1012211012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790172602.

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

Adding to 1012211012211 its reverse (1122101122101), we get a palindrome (2134312134312).

The spelling of 1012211012211 in words is "one trillion, twelve billion, two hundred eleven million, twelve thousand, two hundred eleven".