1001211101011 has 8 divisors (see below), whose sum is σ = 1092294620784. Its totient is φ = 910138302720.

The previous prime is 1001211101003. The next prime is 1001211101053. The reversal of 1001211101011 is 1101011121001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001211101011 - 2³ = 1001211101003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001211101911) 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, 2484486 + ... + 2859211.

It is an arithmetic number, because the mean of its divisors is an integer number (136536827598).

Almost surely, 2^{1001211101011} is an apocalyptic number.

1001211101011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001211101011 is a deficient number, since it is larger than the sum of its proper divisors (91083519773).

1001211101011 is a wasteful number, since it uses less digits than its factorization.

1001211101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360741.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1001211101011 its reverse (1101011121001), we get a palindrome (2102222222012).

The spelling of 1001211101011 in words is "one trillion, one billion, two hundred eleven million, one hundred one thousand, eleven".