10101010121000 has 64 divisors (see below), whose sum is σ = 23665155330960. Its totient is φ = 4035482400000.

The previous prime is 10101010120919. The next prime is 10101010121003. The reversal of 10101010121000 is 12101010101.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1217284129636 + 8883725991364 = 1103306^2 + 2980558^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (10101010121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5330651 + ... + 6972650.

Almost surely, 2^{10101010121000} is an apocalyptic number.

10101010121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101010121000 is an abundant number, since it is smaller than the sum of its proper divisors (13564145209960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10101010121000 is a wasteful number, since it uses less digits than its factorization.

10101010121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12304143 (or 12304129 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10101010121000 its reverse (12101010101), we get a palindrome (10113111131101).

The spelling of 10101010121000 in words is "ten trillion, one hundred one billion, ten million, one hundred twenty-one thousand".