1010121221210 has 16 divisors (see below), whose sum is σ = 1836220360392. Its totient is φ = 400048008000.

The previous prime is 1010121221201. The next prime is 1010121221293. The reversal of 1010121221210 is 121221210101.

It can be written as a sum of positive squares in 4 ways, for example, as 792436455721 + 217684765489 = 890189^2 + 466567^2 .

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 7 ways as a sum of consecutive naturals, for example, 500059001 + ... + 500061020.

Almost surely, 2^{1010121221210} is an apocalyptic number.

1010121221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1010121221210 is a deficient number, since it is larger than the sum of its proper divisors (826099139182).

1010121221210 is a wasteful number, since it uses less digits than its factorization.

1010121221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000120129.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010121221210 its reverse (121221210101), we get a palindrome (1131342431311).

The spelling of 1010121221210 in words is "one trillion, ten billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred ten".