10001222121210 has 32 divisors (see below), whose sum is σ = 24108672900672. Its totient is φ = 2655243697920.

The previous prime is 10001222121197. The next prime is 10001222121239. The reversal of 10001222121210 is 1212122210001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10001222121210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734297311 + ... + 734310930.

It is an arithmetic number, because the mean of its divisors is an integer number (753396028146).

Almost surely, 2^{10001222121210} is an apocalyptic number.

10001222121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10001222121210 is an abundant number, since it is smaller than the sum of its proper divisors (14107450779462).

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

10001222121210 is a wasteful number, since it uses less digits than its factorization.

10001222121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468608478.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10001222121210 its reverse (1212122210001), we get a palindrome (11213344331211).

The spelling of 10001222121210 in words is "ten trillion, one billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred ten".