20222616 has 32 divisors (see below), whose sum is σ = 50702400. Its totient is φ = 6721440.

The previous prime is 20222611. The next prime is 20222621. The reversal of 20222616 is 61622202.

It is an interprime number because it is at equal distance from previous prime (20222611) and next prime (20222621).

It is a junction number, because it is equal to n+sod(n) for n = 20222592 and 20222601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9051 + ... + 11061.

It is an arithmetic number, because the mean of its divisors is an integer number (1584450).

Almost surely, 2^20222616 is an apocalyptic number.

It is an amenable number.

20222616 is an abundant number, since it is smaller than the sum of its proper divisors (30479784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222616 is a wasteful number, since it uses less digits than its factorization.

20222616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20222616 is about 4496.9563039905. The cubic root of 20222616 is about 272.4451692278.

Adding to 20222616 its reverse (61622202), we get a palindrome (81844818).

The spelling of 20222616 in words is "twenty million, two hundred twenty-two thousand, six hundred sixteen".