1002212099 has 4 divisors (see below), whose sum is σ = 1145385264. Its totient is φ = 859038936.

The previous prime is 1002212093. The next prime is 1002212119. The reversal of 1002212099 is 9902122001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9902122001 = 43 ⋅230281907.

It is not a de Polignac number, because 1002212099 - 2⁸ = 1002211843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002212093) 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, 71586572 + ... + 71586585.

It is an arithmetic number, because the mean of its divisors is an integer number (286346316).

Almost surely, 2^1002212099 is an apocalyptic number.

1002212099 is a deficient number, since it is larger than the sum of its proper divisors (143173165).

1002212099 is an equidigital number, since it uses as much as digits as its factorization.

1002212099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143173164.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1002212099 is about 31657.7336365066. The cubic root of 1002212099 is about 1000.7368232914.

The spelling of 1002212099 in words is "one billion, two million, two hundred twelve thousand, ninety-nine".