1011221022211 has 8 divisors (see below), whose sum is σ = 1038853116000. Its totient is φ = 983730269760.

The previous prime is 1011221022199. The next prime is 1011221022247. The reversal of 1011221022211 is 1122201221101.

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 1011221022211 - 2²³ = 1011212633603 is a prime.

It is a super-2 number, since 2×1011221022211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011221028211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35320831 + ... + 35349448.

It is an arithmetic number, because the mean of its divisors is an integer number (129856639500).

Almost surely, 2^{1011221022211} is an apocalyptic number.

1011221022211 is a deficient number, since it is larger than the sum of its proper divisors (27632093789).

1011221022211 is an equidigital number, since it uses as much as digits as its factorization.

1011221022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70670669.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1011221022211 its reverse (1122201221101), we get a palindrome (2133422243312).

The spelling of 1011221022211 in words is "one trillion, eleven billion, two hundred twenty-one million, twenty-two thousand, two hundred eleven".