2212312129 has 8 divisors (see below), whose sum is σ = 2267314560. Its totient is φ = 2157984816.

The previous prime is 2212312127. The next prime is 2212312133. The reversal of 2212312129 is 9212132122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2212312129 - 2¹ = 2212312127 is a prime.

It is a super-2 number, since 2×2212312129² = 9788649912241025282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212312127) 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, 162142 + ... + 175255.

It is an arithmetic number, because the mean of its divisors is an integer number (283414320).

Almost surely, 2^2212312129 is an apocalyptic number.

It is an amenable number.

2212312129 is a deficient number, since it is larger than the sum of its proper divisors (55002431).

2212312129 is an equidigital number, since it uses as much as digits as its factorization.

2212312129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337559.

The product of its digits is 864, while the sum is 25.

The square root of 2212312129 is about 47035.2222169727. Note that the first 4 decimals coincide. The cubic root of 2212312129 is about 1303.0131544682.

The spelling of 2212312129 in words is "two billion, two hundred twelve million, three hundred twelve thousand, one hundred twenty-nine".