1002121212203 has 4 divisors (see below), whose sum is σ = 1002893859000. Its totient is φ = 1001348565408.

The previous prime is 1002121212187. The next prime is 1002121212229. The reversal of 1002121212203 is 3022121212001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002121212203 - 2⁴ = 1002121212187 is a prime.

It is a super-2 number, since 2×1002121212203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002121212233) 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, 386321453 + ... + 386324046.

It is an arithmetic number, because the mean of its divisors is an integer number (250723464750).

Almost surely, 2^{1002121212203} is an apocalyptic number.

1002121212203 is a deficient number, since it is larger than the sum of its proper divisors (772646797).

1002121212203 is an equidigital number, since it uses as much as digits as its factorization.

1002121212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772646796.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1002121212203 its reverse (3022121212001), we get a palindrome (4024242424204).

The spelling of 1002121212203 in words is "one trillion, two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred three".