99212203 has 4 divisors (see below), whose sum is σ = 99232128. Its totient is φ = 99192280.

The previous prime is 99212177. The next prime is 99212227. The reversal of 99212203 is 30221299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30221299 = 929 ⋅32531.

It is a cyclic number.

It is not a de Polignac number, because 99212203 - 2¹³ = 99204011 is a prime.

It is a super-2 number, since 2×99212203² = 19686122448226418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99212263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4725 + ... + 14857.

It is an arithmetic number, because the mean of its divisors is an integer number (24808032).

Almost surely, 2^99212203 is an apocalyptic number.

99212203 is a deficient number, since it is larger than the sum of its proper divisors (19925).

99212203 is a wasteful number, since it uses less digits than its factorization.

99212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19924.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 99212203 is about 9960.5322648943. The cubic root of 99212203 is about 462.9367919348.

The spelling of 99212203 in words is "ninety-nine million, two hundred twelve thousand, two hundred three".