10120420221240 has 128 divisors (see below), whose sum is σ = 34764930408960. Its totient is φ = 2308815788544.

The previous prime is 10120420221187. The next prime is 10120420221259. The reversal of 10120420221240 is 4212202402101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11078959 + ... + 11957598.

It is an arithmetic number, because the mean of its divisors is an integer number (271601018820).

Almost surely, 2^{10120420221240} is an apocalyptic number.

10120420221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120420221240 is an abundant number, since it is smaller than the sum of its proper divisors (24644510187720).

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

10120420221240 is a wasteful number, since it uses less digits than its factorization.

10120420221240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23037101 (or 23037097 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10120420221240 its reverse (4212202402101), we get a palindrome (14332622623341).

The spelling of 10120420221240 in words is "ten trillion, one hundred twenty billion, four hundred twenty million, two hundred twenty-one thousand, two hundred forty".