1001103211212 has 48 divisors (see below), whose sum is σ = 2517607260000. Its totient is φ = 307785074688.

The previous prime is 1001103211211. The next prime is 1001103211237. The reversal of 1001103211212 is 2121123011001.

It is a junction number, because it is equal to n+sod(n) for n = 1001103211191 and 1001103211200.

It is not an unprimeable number, because it can be changed into a prime (1001103211211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2374143 + ... + 2763830.

It is an arithmetic number, because the mean of its divisors is an integer number (52450151250).

Almost surely, 2^{1001103211212} is an apocalyptic number.

1001103211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001103211212 is an abundant number, since it is smaller than the sum of its proper divisors (1516504048788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001103211212 is a wasteful number, since it uses less digits than its factorization.

1001103211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139242 (or 5139240 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1001103211212 its reverse (2121123011001), we get a palindrome (3122226222213).

The spelling of 1001103211212 in words is "one trillion, one billion, one hundred three million, two hundred eleven thousand, two hundred twelve".