101212101010 has 16 divisors (see below), whose sum is σ = 183985563672. Its totient is φ = 40084000000.

The previous prime is 101212101007. The next prime is 101212101019. The reversal of 101212101010 is 10101212101.

101212101010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 101083935969 + 128165041 = 317937^2 + 11321^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (101212101019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50103991 + ... + 50106010.

Almost surely, 2^101212101010 is an apocalyptic number.

101212101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101212101010 is a deficient number, since it is larger than the sum of its proper divisors (82773462662).

101212101010 is a wasteful number, since it uses less digits than its factorization.

101212101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100210109.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101212101010 its reverse (10101212101), we get a palindrome (111313313111).

The spelling of 101212101010 in words is "one hundred one billion, two hundred twelve million, one hundred one thousand, ten".