221030023211 has 8 divisors (see below), whose sum is σ = 222292331184. Its totient is φ = 219771105120.

The previous prime is 221030023153. The next prime is 221030023217. The reversal of 221030023211 is 112320030122.

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 221030023211 - 2³⁰ = 219956281387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221030023211.

It is not an unprimeable number, because it can be changed into a prime (221030023217) 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, 716636 + ... + 977561.

It is an arithmetic number, because the mean of its divisors is an integer number (27786541398).

Almost surely, 2^221030023211 is an apocalyptic number.

221030023211 is a deficient number, since it is larger than the sum of its proper divisors (1262307973).

221030023211 is a wasteful number, since it uses less digits than its factorization.

221030023211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694941.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221030023211 its reverse (112320030122), we get a palindrome (333350053333).

The spelling of 221030023211 in words is "two hundred twenty-one billion, thirty million, twenty-three thousand, two hundred eleven".