1001021031212 has 6 divisors (see below), whose sum is σ = 1751786804628. Its totient is φ = 500510515604.

The previous prime is 1001021031193. The next prime is 1001021031229. The reversal of 1001021031212 is 2121301201001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125127628898 + ... + 125127628905.

It is an arithmetic number, because the mean of its divisors is an integer number (291964467438).

Almost surely, 2^{1001021031212} is an apocalyptic number.

It is an amenable number.

1001021031212 is a deficient number, since it is larger than the sum of its proper divisors (750765773416).

1001021031212 is a wasteful number, since it uses less digits than its factorization.

1001021031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250255257807 (or 250255257805 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1001021031212 its reverse (2121301201001), we get a palindrome (3122322232213).

The spelling of 1001021031212 in words is "one trillion, one billion, twenty-one million, thirty-one thousand, two hundred twelve".