2210022021 has 16 divisors (see below), whose sum is σ = 2994223680. Its totient is φ = 1449772800.

The previous prime is 2210022011. The next prime is 2210022047. The reversal of 2210022021 is 1202200122.

It is a de Polignac number, because none of the positive numbers 2^k-2210022021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2210021988 and 2210022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210022011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23671 + ... + 70571.

It is an arithmetic number, because the mean of its divisors is an integer number (187138980).

Almost surely, 2^2210022021 is an apocalyptic number.

It is an amenable number.

2210022021 is a deficient number, since it is larger than the sum of its proper divisors (784201659).

2210022021 is a wasteful number, since it uses less digits than its factorization.

2210022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47156.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2210022021 is about 47010.8713065393. The cubic root of 2210022021 is about 1302.5633880510.

Adding to 2210022021 its reverse (1202200122), we get a palindrome (3412222143).

The spelling of 2210022021 in words is "two billion, two hundred ten million, twenty-two thousand, twenty-one".