22101021212210 has 8 divisors (see below), whose sum is σ = 39781838181996. Its totient is φ = 8840408484880.

The previous prime is 22101021212183. The next prime is 22101021212267. The reversal of 22101021212210 is 1221212010122.

It can be written as a sum of positive squares in 2 ways, for example, as 19913790225169 + 2187230987041 = 4462487^2 + 1478929^2 .

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, 1105051060601 + ... + 1105051060620.

Almost surely, 2^{22101021212210} is an apocalyptic number.

22101021212210 is a deficient number, since it is larger than the sum of its proper divisors (17680816969786).

22101021212210 is a wasteful number, since it uses less digits than its factorization.

22101021212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210102121228.

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

Adding to 22101021212210 its reverse (1221212010122), we get a palindrome (23322233222332).

The spelling of 22101021212210 in words is "twenty-two trillion, one hundred one billion, twenty-one million, two hundred twelve thousand, two hundred ten".