10120220420 has 48 divisors (see below), whose sum is σ = 22494763200. Its totient is φ = 3813816960.

The previous prime is 10120220417. The next prime is 10120220443. The reversal of 10120220420 is 2402202101.

It is a super-2 number, since 2×10120220420² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10120220395 and 10120220404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4790 + ... + 142349.

It is an arithmetic number, because the mean of its divisors is an integer number (468640900).

Almost surely, 2^10120220420 is an apocalyptic number.

10120220420 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 10120220420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11247381600).

10120220420 is an abundant number, since it is smaller than the sum of its proper divisors (12374542780).

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

10120220420 is a wasteful number, since it uses less digits than its factorization.

10120220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147348 (or 147346 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10120220420 its reverse (2402202101), we get a palindrome (12522422521).

The spelling of 10120220420 in words is "ten billion, one hundred twenty million, two hundred twenty thousand, four hundred twenty".