1001011220111 has 8 divisors (see below), whose sum is σ = 1144447334304. Its totient is φ = 857683733760.

The previous prime is 1001011220107. The next prime is 1001011220119. The reversal of 1001011220111 is 1110221101001.

1001011220111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1001011220111 - 2² = 1001011220107 is a prime.

It is a super-2 number, since 2×1001011220111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001011220092 and 1001011220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001011220119) 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, 27137210 + ... + 27174071.

It is an arithmetic number, because the mean of its divisors is an integer number (143055916788).

Almost surely, 2^{1001011220111} is an apocalyptic number.

1001011220111 is a deficient number, since it is larger than the sum of its proper divisors (143436114193).

1001011220111 is an equidigital number, since it uses as much as digits as its factorization.

1001011220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54313921.

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

Adding to 1001011220111 its reverse (1110221101001), we get a palindrome (2111232321112).

The spelling of 1001011220111 in words is "one trillion, one billion, eleven million, two hundred twenty thousand, one hundred eleven".