1000212199 has 4 divisors (see below), whose sum is σ = 1143099664. Its totient is φ = 857324736.

The previous prime is 1000212197. The next prime is 1000212211. The reversal of 1000212199 is 9912120001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9912120001 = 7 ⋅1416017143.

It is a cyclic number.

It is not a de Polignac number, because 1000212199 - 2¹ = 1000212197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000212197) 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, 71443722 + ... + 71443735.

It is an arithmetic number, because the mean of its divisors is an integer number (285774916).

Almost surely, 2^1000212199 is an apocalyptic number.

1000212199 is a deficient number, since it is larger than the sum of its proper divisors (142887465).

1000212199 is an equidigital number, since it uses as much as digits as its factorization.

1000212199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142887464.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1000212199 is about 31626.1315844983. The cubic root of 1000212199 is about 1000.0707279974.

It can be divided in two parts, 10002 and 12199, that added together give a square (22201 = 149²).

The spelling of 1000212199 in words is "one billion, two hundred twelve thousand, one hundred ninety-nine".