10221201222212 has 6 divisors (see below), whose sum is σ = 17887102138878. Its totient is φ = 5110600611104.

The previous prime is 10221201222187. The next prime is 10221201222247. The reversal of 10221201222212 is 21222210212201.

It can be written as a sum of positive squares in only one way, i.e., 6083296676356 + 4137904545856 = 2466434^2 + 2034184^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277650152773 + ... + 1277650152780.

It is an arithmetic number, because the mean of its divisors is an integer number (2981183689813).

Almost surely, 2^{10221201222212} is an apocalyptic number.

It is an amenable number.

10221201222212 is a deficient number, since it is larger than the sum of its proper divisors (7665900916666).

10221201222212 is a wasteful number, since it uses less digits than its factorization.

10221201222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555300305557 (or 2555300305555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10221201222212 its reverse (21222210212201), we get a palindrome (31443411434413).

The spelling of 10221201222212 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, two hundred twelve".