1011212220011 has 8 divisors (see below), whose sum is σ = 1155698730240. Its totient is φ = 866732615208.

The previous prime is 1011212219981. The next prime is 1011212220017. The reversal of 1011212220011 is 1100222121101.

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-1011212220011 is a prime.

It is a super-4 number, since 4×1011212220011⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011212220017) 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, 1408661 + ... + 2001686.

It is an arithmetic number, because the mean of its divisors is an integer number (144462341280).

Almost surely, 2^{1011212220011} is an apocalyptic number.

1011212220011 is a deficient number, since it is larger than the sum of its proper divisors (144486510229).

1011212220011 is an equidigital number, since it uses as much as digits as its factorization.

1011212220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452713.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011212220011 its reverse (1100222121101), we get a palindrome (2111434341112).

The spelling of 1011212220011 in words is "one trillion, eleven billion, two hundred twelve million, two hundred twenty thousand, eleven".