1001002203212 has 48 divisors (see below), whose sum is σ = 1974096230400. Its totient is φ = 440000620800.

The previous prime is 1001002203169. The next prime is 1001002203221. The reversal of 1001002203212 is 2123022001001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596164 + ... + 2133012.

It is an arithmetic number, because the mean of its divisors is an integer number (41127004800).

Almost surely, 2^{1001002203212} is an apocalyptic number.

It is an amenable number.

1001002203212 is a deficient number, since it is larger than the sum of its proper divisors (973094027188).

1001002203212 is a wasteful number, since it uses less digits than its factorization.

1001002203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538262 (or 538260 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1001002203212 its reverse (2123022001001), we get a palindrome (3124024204213).

The spelling of 1001002203212 in words is "one trillion, one billion, two million, two hundred three thousand, two hundred twelve".