10421228550 has 24 divisors (see below), whose sum is σ = 25844647176. Its totient is φ = 2778994240.

The previous prime is 10421228537. The next prime is 10421228567. The reversal of 10421228550 is 5582212401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34737279 + ... + 34737578.

It is an arithmetic number, because the mean of its divisors is an integer number (1076860299).

Almost surely, 2^10421228550 is an apocalyptic number.

10421228550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10421228550 is an abundant number, since it is smaller than the sum of its proper divisors (15423418626).

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

10421228550 is a wasteful number, since it uses less digits than its factorization.

10421228550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69474872 (or 69474867 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 10421228550 in words is "ten billion, four hundred twenty-one million, two hundred twenty-eight thousand, five hundred fifty".