10020120221020 has 192 divisors, whose sum is σ = 25974479462400. Its totient is φ = 3161866337280.

The previous prime is 10020120220991. The next prime is 10020120221047. The reversal of 10020120221020 is 2012202102001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2159971861 + ... + 2159976499.

It is an arithmetic number, because the mean of its divisors is an integer number (135283747200).

Almost surely, 2^{10020120221020} is an apocalyptic number.

10020120221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020120221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12987239731200).

10020120221020 is an abundant number, since it is smaller than the sum of its proper divisors (15954359241380).

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

10020120221020 is a wasteful number, since it uses less digits than its factorization.

10020120221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908 (or 7906 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10020120221020 its reverse (2012202102001), we get a palindrome (12032322323021).

The spelling of 10020120221020 in words is "ten trillion, twenty billion, one hundred twenty million, two hundred twenty-one thousand, twenty".