2222166206511 has 8 divisors (see below), whose sum is σ = 3292098083760. Its totient is φ = 1481444137656.

The previous prime is 2222166206497. The next prime is 2222166206537. The reversal of 2222166206511 is 1156026612222.

2222166206511 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 16 + 620 + 6 + 5 + 11 = 666.

It is not a de Polignac number, because 2222166206511 - 2⁹ = 2222166205999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222166286511) 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, 41151226020 + ... + 41151226073.

It is an arithmetic number, because the mean of its divisors is an integer number (411512260470).

Almost surely, 2^{2222166206511} is an apocalyptic number.

2222166206511 is a deficient number, since it is larger than the sum of its proper divisors (1069931877249).

2222166206511 is an equidigital number, since it uses as much as digits as its factorization.

2222166206511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82302452102 (or 82302452096 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 2222166206511 in words is "two trillion, two hundred twenty-two billion, one hundred sixty-six million, two hundred six thousand, five hundred eleven".