10402100221420 has 12 divisors (see below), whose sum is σ = 21844410465024. Its totient is φ = 4160840088560.

The previous prime is 10402100221393. The next prime is 10402100221421. The reversal of 10402100221420 is 2412200120401.

It is not an unprimeable number, because it can be changed into a prime (10402100221421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260052505516 + ... + 260052505555.

It is an arithmetic number, because the mean of its divisors is an integer number (1820367538752).

Almost surely, 2^{10402100221420} is an apocalyptic number.

10402100221420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10402100221420 is an abundant number, since it is smaller than the sum of its proper divisors (11442310243604).

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

10402100221420 is a wasteful number, since it uses less digits than its factorization.

10402100221420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520105011080 (or 520105011078 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10402100221420 its reverse (2412200120401), we get a palindrome (12814300341821).

The spelling of 10402100221420 in words is "ten trillion, four hundred two billion, one hundred million, two hundred twenty-one thousand, four hundred twenty".