22420141521 has 16 divisors (see below), whose sum is σ = 30270467136. Its totient is φ = 14758488576.

The previous prime is 22420141517. The next prime is 22420141537. The reversal of 22420141521 is 12514102422.

It is not a de Polignac number, because 22420141521 - 2² = 22420141517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22420141491 and 22420141500.

It is not an unprimeable number, because it can be changed into a prime (22420141321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442341 + ... + 490413.

It is an arithmetic number, because the mean of its divisors is an integer number (1891904196).

Almost surely, 2^22420141521 is an apocalyptic number.

It is an amenable number.

22420141521 is a deficient number, since it is larger than the sum of its proper divisors (7850325615).

22420141521 is a wasteful number, since it uses less digits than its factorization.

22420141521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50032.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 22420141521 its reverse (12514102422), we get a palindrome (34934243943).

The spelling of 22420141521 in words is "twenty-two billion, four hundred twenty million, one hundred forty-one thousand, five hundred twenty-one".