222166205011205 has 64 divisors (see below), whose sum is σ = 344447786188800. Its totient is φ = 133781058812160.

The previous prime is 222166205011193. The next prime is 222166205011241. The reversal of 222166205011205 is 502110502661222.

It is not a de Polignac number, because 222166205011205 - 2¹⁰ = 222166205010181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132649865 + ... + 134314254.

It is an arithmetic number, because the mean of its divisors is an integer number (5381996659200).

Almost surely, 2^{222166205011205} is an apocalyptic number.

It is an amenable number.

222166205011205 is a deficient number, since it is larger than the sum of its proper divisors (122281581177595).

222166205011205 is a wasteful number, since it uses less digits than its factorization.

222166205011205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266964234.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 222166205011205 its reverse (502110502661222), we get a palindrome (724276707672427).

The spelling of 222166205011205 in words is "two hundred twenty-two trillion, one hundred sixty-six billion, two hundred five million, eleven thousand, two hundred five".