1011211011211 has 8 divisors (see below), whose sum is σ = 1066467897920. Its totient is φ = 956157649992.

The previous prime is 1011211011193. The next prime is 1011211011233. The reversal of 1011211011211 is 1121101121101.

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

It is not a de Polignac number, because 1011211011211 - 2²³ = 1011202622603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011211011191 and 1011211011200.

It is not an unprimeable number, because it can be changed into a prime (1011211911211) 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, 50871165 + ... + 50891038.

It is an arithmetic number, because the mean of its divisors is an integer number (133308487240).

Almost surely, 2^{1011211011211} is an apocalyptic number.

1011211011211 is a deficient number, since it is larger than the sum of its proper divisors (55256886709).

1011211011211 is a wasteful number, since it uses less digits than its factorization.

1011211011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101762745.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1011211011211 its reverse (1121101121101), we get a palindrome (2132312132312).

The spelling of 1011211011211 in words is "one trillion, eleven billion, two hundred eleven million, eleven thousand, two hundred eleven".