10220120121220 has 96 divisors (see below), whose sum is σ = 21815104550400. Its totient is φ = 4021117363200.

The previous prime is 10220120121179. The next prime is 10220120121251. The reversal of 10220120121220 is 2212102102201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10220120121194 and 10220120121203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1184387866 + ... + 1184396494.

It is an arithmetic number, because the mean of its divisors is an integer number (227240672400).

Almost surely, 2^{10220120121220} is an apocalyptic number.

10220120121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220120121220 is an abundant number, since it is smaller than the sum of its proper divisors (11594984429180).

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

10220120121220 is a wasteful number, since it uses less digits than its factorization.

10220120121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10549 (or 10547 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10220120121220 its reverse (2212102102201), we get a palindrome (12432222223421).

The spelling of 10220120121220 in words is "ten trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twenty".