120210001020 has 48 divisors (see below), whose sum is σ = 373986671520. Its totient is φ = 32056000128.

The previous prime is 120210001019. The next prime is 120210001069. The reversal of 120210001020 is 20100012021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120210000993 and 120210001011.

It is a congruent number.

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, 111305017 + ... + 111306096.

It is an arithmetic number, because the mean of its divisors is an integer number (7791388990).

Almost surely, 2^120210001020 is an apocalyptic number.

120210001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120210001020 is an abundant number, since it is smaller than the sum of its proper divisors (253776670500).

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

120210001020 is a wasteful number, since it uses less digits than its factorization.

120210001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222611131 (or 222611123 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 120210001020 its reverse (20100012021), we get a palindrome (140310013041).

The spelling of 120210001020 in words is "one hundred twenty billion, two hundred ten million, one thousand, twenty".