22001516 has 6 divisors (see below), whose sum is σ = 38502660. Its totient is φ = 11000756.

The previous prime is 22001503. The next prime is 22001533. The reversal of 22001516 is 61510022.

It is a junction number, because it is equal to n+sod(n) for n = 22001494 and 22001503.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750186 + ... + 2750193.

It is an arithmetic number, because the mean of its divisors is an integer number (6417110).

Almost surely, 2^22001516 is an apocalyptic number.

It is an amenable number.

22001516 is a deficient number, since it is larger than the sum of its proper divisors (16501144).

22001516 is a wasteful number, since it uses less digits than its factorization.

22001516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500383 (or 5500381 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 22001516 is about 4690.5773631825. The cubic root of 22001516 is about 280.2103691171.

Adding to 22001516 its reverse (61510022), we get a palindrome (83511538).

The spelling of 22001516 in words is "twenty-two million, one thousand, five hundred sixteen".