221022010221011 has 16 divisors (see below), whose sum is σ = 234271237419648. Its totient is φ = 207800443468800.

The previous prime is 221022010220993. The next prime is 221022010221013. The reversal of 221022010221011 is 110122010220122.

It is a cyclic number.

It is not a de Polignac number, because 221022010221011 - 2¹⁴ = 221022010204627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022010221013) 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 15 ways as a sum of consecutive naturals, for example, 61244471 + ... + 64752831.

It is an arithmetic number, because the mean of its divisors is an integer number (14641952338728).

Almost surely, 2^{221022010221011} is an apocalyptic number.

221022010221011 is a deficient number, since it is larger than the sum of its proper divisors (13249227198637).

221022010221011 is a wasteful number, since it uses less digits than its factorization.

221022010221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512302.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221022010221011 its reverse (110122010220122), we get a palindrome (331144020441133).

The spelling of 221022010221011 in words is "two hundred twenty-one trillion, twenty-two billion, ten million, two hundred twenty-one thousand, eleven".