20212299 has 6 divisors (see below), whose sum is σ = 29195556. Its totient is φ = 13474860.

The previous prime is 20212271. The next prime is 20212319. The reversal of 20212299 is 99221202.

It is not a de Polignac number, because 20212299 - 2⁵ = 20212267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20212259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122897 + ... + 1122914.

It is an arithmetic number, because the mean of its divisors is an integer number (4865926).

Almost surely, 2^20212299 is an apocalyptic number.

20212299 is a deficient number, since it is larger than the sum of its proper divisors (8983257).

20212299 is a wasteful number, since it uses less digits than its factorization.

20212299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245817 (or 2245814 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 20212299 is about 4495.8090484361. The cubic root of 20212299 is about 272.3988301036.

The spelling of 20212299 in words is "twenty million, two hundred twelve thousand, two hundred ninety-nine".