10121210100220 has 12 divisors (see below), whose sum is σ = 21254541210504. Its totient is φ = 4048484040080.

The previous prime is 10121210100181. The next prime is 10121210100251. The reversal of 10121210100220 is 2200101212101.

It is a self number, because there is not a number n which added to its sum of digits gives 10121210100220.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 253030252486 + ... + 253030252525.

It is an arithmetic number, because the mean of its divisors is an integer number (1771211767542).

Almost surely, 2^{10121210100220} is an apocalyptic number.

10121210100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121210100220 is an abundant number, since it is smaller than the sum of its proper divisors (11133331110284).

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

10121210100220 is a wasteful number, since it uses less digits than its factorization.

10121210100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506060505020 (or 506060505018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121210100220 its reverse (2200101212101), we get a palindrome (12321311312321).

The spelling of 10121210100220 in words is "ten trillion, one hundred twenty-one billion, two hundred ten million, one hundred thousand, two hundred twenty".