1001212222011 has 8 divisors (see below), whose sum is σ = 1336061165904. Its totient is φ = 666919046400.

The previous prime is 1001212222007. The next prime is 1001212222019. The reversal of 1001212222011 is 1102222121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001212222011 - 2² = 1001212222007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001212222019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138937866 + ... + 138945071.

It is an arithmetic number, because the mean of its divisors is an integer number (167007645738).

Almost surely, 2^{1001212222011} is an apocalyptic number.

1001212222011 is a deficient number, since it is larger than the sum of its proper divisors (334848943893).

1001212222011 is a wasteful number, since it uses less digits than its factorization.

1001212222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277884141.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1001212222011 its reverse (1102222121001), we get a palindrome (2103434343012).

The spelling of 1001212222011 in words is "one trillion, one billion, two hundred twelve million, two hundred twenty-two thousand, eleven".