120120021010 has 128 divisors (see below), whose sum is σ = 250953292800. Its totient is φ = 40981248000.

The previous prime is 120120020953. The next prime is 120120021031. The reversal of 120120021010 is 10120021021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35442396 + ... + 35445784.

It is an arithmetic number, because the mean of its divisors is an integer number (1960572600).

Almost surely, 2^120120021010 is an apocalyptic number.

120120021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120120021010 is an abundant number, since it is smaller than the sum of its proper divisors (130833271790).

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

120120021010 is a wasteful number, since it uses less digits than its factorization.

120120021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120120021010 its reverse (10120021021), we get a palindrome (130240042031).

The spelling of 120120021010 in words is "one hundred twenty billion, one hundred twenty million, twenty-one thousand, ten".