10220121220020 has 96 divisors (see below), whose sum is σ = 29704299803136. Its totient is φ = 2623651584000.

The previous prime is 10220121219961. The next prime is 10220121220027. The reversal of 10220121220020 is 2002212102201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220121220027) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 29534181 + ... + 29878220.

It is an arithmetic number, because the mean of its divisors is an integer number (309419789616).

Almost surely, 2^{10220121220020} is an apocalyptic number.

10220121220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220121220020 is an abundant number, since it is smaller than the sum of its proper divisors (19484178583116).

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

10220121220020 is a wasteful number, since it uses less digits than its factorization.

10220121220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59412521 (or 59412519 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10220121220020 its reverse (2002212102201), we get a palindrome (12222333322221).

The spelling of 10220121220020 in words is "ten trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, twenty".