21266225030 has 16 divisors (see below), whose sum is σ = 38282300784. Its totient is φ = 8505802080.

The previous prime is 21266225011. The next prime is 21266225041. The reversal of 21266225030 is 3052266212.

It is a junction number, because it is equal to n+sod(n) for n = 21266224984 and 21266225002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54824 + ... + 213396.

It is an arithmetic number, because the mean of its divisors is an integer number (2392643799).

Almost surely, 2^21266225030 is an apocalyptic number.

21266225030 is a deficient number, since it is larger than the sum of its proper divisors (17016075754).

21266225030 is a wasteful number, since it uses less digits than its factorization.

21266225030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171991.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 21266225030 in words is "twenty-one billion, two hundred sixty-six million, two hundred twenty-five thousand, thirty".