21350030522 has 16 divisors (see below), whose sum is σ = 33115460352. Its totient is φ = 10312738560.

The previous prime is 21350030519. The next prime is 21350030557. The reversal of 21350030522 is 22503005312.

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, 262628 + ... + 334175.

It is an arithmetic number, because the mean of its divisors is an integer number (2069716272).

Almost surely, 2^21350030522 is an apocalyptic number.

21350030522 is a deficient number, since it is larger than the sum of its proper divisors (11765429830).

21350030522 is a wasteful number, since it uses less digits than its factorization.

21350030522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597413.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 21350030522 its reverse (22503005312), we get a palindrome (43853035834).

The spelling of 21350030522 in words is "twenty-one billion, three hundred fifty million, thirty thousand, five hundred twenty-two".