1011011212001 has 8 divisors (see below), whose sum is σ = 1156936140864. Its totient is φ = 865459972080.

The previous prime is 1011011211983. The next prime is 1011011212007. The reversal of 1011011212001 is 1002121101101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011011212001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011011212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93416435 + ... + 93427256.

It is an arithmetic number, because the mean of its divisors is an integer number (144617017608).

Almost surely, 2^{1011011212001} is an apocalyptic number.

It is an amenable number.

1011011212001 is a deficient number, since it is larger than the sum of its proper divisors (145924928863).

1011011212001 is an equidigital number, since it uses as much as digits as its factorization.

1011011212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186844471.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011011212001 its reverse (1002121101101), we get a palindrome (2013132313102).

The spelling of 1011011212001 in words is "one trillion, eleven billion, eleven million, two hundred twelve thousand, one".