10421101220 has 48 divisors (see below), whose sum is σ = 22316007168. Its totient is φ = 4087017600.

The previous prime is 10421101139. The next prime is 10421101279. The reversal of 10421101220 is 2210112401.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10421101195 and 10421101204.

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, 183017 + ... + 233103.

It is an arithmetic number, because the mean of its divisors is an integer number (464916816).

Almost surely, 2^10421101220 is an apocalyptic number.

10421101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10421101220 is an abundant number, since it is smaller than the sum of its proper divisors (11894905948).

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

10421101220 is a wasteful number, since it uses less digits than its factorization.

10421101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50300 (or 50298 counting only the distinct ones).

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

Adding to 10421101220 its reverse (2210112401), we get a palindrome (12631213621).

The spelling of 10421101220 in words is "ten billion, four hundred twenty-one million, one hundred one thousand, two hundred twenty".