21350222834 has 16 divisors (see below), whose sum is σ = 33420867840. Its totient is φ = 10210020480.

The previous prime is 21350222827. The next prime is 21350222869. The reversal of 21350222834 is 43822205312.

It is a super-2 number, since 2×21350222834² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21350222834.

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, 859874 + ... + 884354.

It is an arithmetic number, because the mean of its divisors is an integer number (2088804240).

Almost surely, 2^21350222834 is an apocalyptic number.

21350222834 is a deficient number, since it is larger than the sum of its proper divisors (12070645006).

21350222834 is a wasteful number, since it uses less digits than its factorization.

21350222834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43465.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 21350222834 in words is "twenty-one billion, three hundred fifty million, two hundred twenty-two thousand, eight hundred thirty-four".