221020022022011 has 4 divisors (see below), whose sum is σ = 226993536130752. Its totient is φ = 215046507913272.

The previous prime is 221020022021993. The next prime is 221020022022029. The reversal of 221020022022011 is 110220220020122.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (221020022021993) and next prime (221020022022029).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221020022022011 is a prime.

It is a super-2 number, since 2×221020022022011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221020022022031) 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, 2986757054315 + ... + 2986757054388.

It is an arithmetic number, because the mean of its divisors is an integer number (56748384032688).

Almost surely, 2^{221020022022011} is an apocalyptic number.

221020022022011 is a deficient number, since it is larger than the sum of its proper divisors (5973514108741).

221020022022011 is an equidigital number, since it uses as much as digits as its factorization.

221020022022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973514108740.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221020022022011 its reverse (110220220020122), we get a palindrome (331240242042133).

The spelling of 221020022022011 in words is "two hundred twenty-one trillion, twenty billion, twenty-two million, twenty-two thousand, eleven".