221002022011 has 8 divisors (see below), whose sum is σ = 233096209920. Its totient is φ = 208954084392.

The previous prime is 221002022009. The next prime is 221002022023. The reversal of 221002022011 is 110220200122.

It is a happy number.

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 221002022011 - 2¹ = 221002022009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221002021982 and 221002022000.

It is not an unprimeable number, because it can be changed into a prime (221002022611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11552755 + ... + 11571868.

It is an arithmetic number, because the mean of its divisors is an integer number (29137026240).

Almost surely, 2^221002022011 is an apocalyptic number.

221002022011 is a deficient number, since it is larger than the sum of its proper divisors (12094187909).

221002022011 is a wasteful number, since it uses less digits than its factorization.

221002022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23125145.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221002022011 its reverse (110220200122), we get a palindrome (331222222133).

The spelling of 221002022011 in words is "two hundred twenty-one billion, two million, twenty-two thousand, eleven".