210120021020120 has 32 divisors (see below), whose sum is σ = 472889827242000. Its totient is φ = 84026714195328.

The previous prime is 210120021020093. The next prime is 210120021020131. The reversal of 210120021020120 is 21020120021012.

It is a junction number, because it is equal to n+sod(n) for n = 210120021020095 and 210120021020104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665284295 + ... + 665600054.

Almost surely, 2^{210120021020120} is an apocalyptic number.

210120021020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210120021020120 is an abundant number, since it is smaller than the sum of its proper divisors (262769806221880).

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

210120021020120 is a wasteful number, since it uses less digits than its factorization.

210120021020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330888307 (or 1330888303 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210120021020120 its reverse (21020120021012), we get a palindrome (231140141041132).

The spelling of 210120021020120 in words is "two hundred ten trillion, one hundred twenty billion, twenty-one million, twenty thousand, one hundred twenty".