22021210222210 has 8 divisors (see below), whose sum is σ = 39638178399996. Its totient is φ = 8808484088880.

The previous prime is 22021210222199. The next prime is 22021210222259. The reversal of 22021210222210 is 1222201212022.

It can be written as a sum of positive squares in 2 ways, for example, as 20144504757169 + 1876705465041 = 4488263^2 + 1369929^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101060511101 + ... + 1101060511120.

Almost surely, 2^{22021210222210} is an apocalyptic number.

22021210222210 is a deficient number, since it is larger than the sum of its proper divisors (17616968177786).

22021210222210 is a wasteful number, since it uses less digits than its factorization.

22021210222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202121022228.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22021210222210 its reverse (1222201212022), we get a palindrome (23243411434232).

The spelling of 22021210222210 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, two hundred twenty-two thousand, two hundred ten".