1010011221211 has 4 divisors (see below), whose sum is σ = 1053924752592. Its totient is φ = 966097689832.

The previous prime is 1010011221187. The next prime is 1010011221217. The reversal of 1010011221211 is 1121221100101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1010011221211 - 2⁷ = 1010011221083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010011221191 and 1010011221200.

It is not an unprimeable number, because it can be changed into a prime (1010011221217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21956765656 + ... + 21956765701.

It is an arithmetic number, because the mean of its divisors is an integer number (263481188148).

Almost surely, 2^{1010011221211} is an apocalyptic number.

1010011221211 is a deficient number, since it is larger than the sum of its proper divisors (43913531381).

1010011221211 is an equidigital number, since it uses as much as digits as its factorization.

1010011221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43913531380.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1010011221211 its reverse (1121221100101), we get a palindrome (2131232321312).

The spelling of 1010011221211 in words is "one trillion, ten billion, eleven million, two hundred twenty-one thousand, two hundred eleven".