10101211011 has 96 divisors (see below), whose sum is σ = 16352601408. Its totient is φ = 5980815360.

The previous prime is 10101210997. The next prime is 10101211013. The reversal of 10101211011 is 11011210101.

It is not a de Polignac number, because 10101211011 - 2⁹ = 10101210499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10101210984 and 10101211002.

It is not an unprimeable number, because it can be changed into a prime (10101211013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39304195 + ... + 39304451.

It is an arithmetic number, because the mean of its divisors is an integer number (170339598).

Almost surely, 2^10101211011 is an apocalyptic number.

10101211011 is a deficient number, since it is larger than the sum of its proper divisors (6251390397).

10101211011 is a wasteful number, since it uses less digits than its factorization.

10101211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10101211011 its reverse (11011210101), we get a palindrome (21112421112).

The spelling of 10101211011 in words is "ten billion, one hundred one million, two hundred eleven thousand, eleven".