101210101011 has 12 divisors (see below), whose sum is σ = 146256153888. Its totient is φ = 67443961104.

The previous prime is 101210100989. The next prime is 101210101063. The reversal of 101210101011 is 110101012101.

It is not a de Polignac number, because 101210101011 - 2⁷ = 101210100883 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 = 101210100984 and 101210101002.

It is not an unprimeable number, because it can be changed into a prime (101210101081) 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, 2431515 + ... + 2472788.

It is an arithmetic number, because the mean of its divisors is an integer number (12188012824).

Almost surely, 2^101210101011 is an apocalyptic number.

101210101011 is a deficient number, since it is larger than the sum of its proper divisors (45046052877).

101210101011 is a wasteful number, since it uses less digits than its factorization.

101210101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906602 (or 4906599 counting only the distinct ones).

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

Adding to 101210101011 its reverse (110101012101), we get a palindrome (211311113112).

The spelling of 101210101011 in words is "one hundred one billion, two hundred ten million, one hundred one thousand, eleven".