2172216026 has 16 divisors (see below), whose sum is σ = 3279830400. Its totient is φ = 1078949808.

The previous prime is 2172215923. The next prime is 2172216031. The reversal of 2172216026 is 6206122712.

It is a happy number.

It is a super-2 number, since 2×2172216026² = 9437044927222465352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2172216026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703955 + ... + 707033.

It is an arithmetic number, because the mean of its divisors is an integer number (204989400).

Almost surely, 2^2172216026 is an apocalyptic number.

2172216026 is a deficient number, since it is larger than the sum of its proper divisors (1107614374).

2172216026 is a wasteful number, since it uses less digits than its factorization.

2172216026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2172216026 is about 46607.0383740482. The cubic root of 2172216026 is about 1295.0931445652.

Adding to 2172216026 its reverse (6206122712), we get a palindrome (8378338738).

The spelling of 2172216026 in words is "two billion, one hundred seventy-two million, two hundred sixteen thousand, twenty-six".