1011011021211 has 12 divisors (see below), whose sum is σ = 1361493561656. Its totient is φ = 667333987200.

The previous prime is 1011011021149. The next prime is 1011011021221. The reversal of 1011011021211 is 1121201101101.

It is not a de Polignac number, because 1011011021211 - 2¹⁵ = 1011010988443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011011021221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16487566 + ... + 16548771.

Almost surely, 2^{1011011021211} is an apocalyptic number.

1011011021211 is a deficient number, since it is larger than the sum of its proper divisors (350482540445).

1011011021211 is an equidigital number, since it uses as much as digits as its factorization.

1011011021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33036542 (or 33036441 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1011011021211 its reverse (1121201101101), we get a palindrome (2132212122312).

The spelling of 1011011021211 in words is "one trillion, eleven billion, eleven million, twenty-one thousand, two hundred eleven".