21225474150 has 48 divisors (see below), whose sum is σ = 52911989904. Its totient is φ = 5630791680.

The previous prime is 21225474121. The next prime is 21225474217. The reversal of 21225474150 is 5147452212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337639 + ... + 395538.

It is an arithmetic number, because the mean of its divisors is an integer number (1102333123).

Almost surely, 2^21225474150 is an apocalyptic number.

21225474150 is an abundant number, since it is smaller than the sum of its proper divisors (31686515754).

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

21225474150 is a wasteful number, since it uses less digits than its factorization.

21225474150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733385 (or 733380 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The spelling of 21225474150 in words is "twenty-one billion, two hundred twenty-five million, four hundred seventy-four thousand, one hundred fifty".