2210222021 has 8 divisors (see below), whose sum is σ = 2545858560. Its totient is φ = 1879558128.

The previous prime is 2210222009. The next prime is 2210222029. The reversal of 2210222021 is 1202220122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2210222021 is a prime.

It is a super-3 number, since 3×2210222021³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2210221987 and 2210222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210222029) 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, 1242206 + ... + 1243983.

It is an arithmetic number, because the mean of its divisors is an integer number (318232320).

Almost surely, 2^2210222021 is an apocalyptic number.

It is an amenable number.

2210222021 is a deficient number, since it is larger than the sum of its proper divisors (335636539).

2210222021 is a wasteful number, since it uses less digits than its factorization.

2210222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486323.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2210222021 is about 47012.9984259673. The cubic root of 2210222021 is about 1302.6026794875.

Adding to 2210222021 its reverse (1202220122), we get a palindrome (3412442143).

The spelling of 2210222021 in words is "two billion, two hundred ten million, two hundred twenty-two thousand, twenty-one".