20220111544 has 16 divisors (see below), whose sum is σ = 37997154000. Its totient is φ = 10087537152.

The previous prime is 20220111523. The next prime is 20220111557. The reversal of 20220111544 is 44511102202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2811012 + ... + 2818195.

It is an arithmetic number, because the mean of its divisors is an integer number (2374822125).

Almost surely, 2^20220111544 is an apocalyptic number.

It is an amenable number.

20220111544 is a deficient number, since it is larger than the sum of its proper divisors (17777042456).

20220111544 is a wasteful number, since it uses less digits than its factorization.

20220111544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629662 (or 5629658 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 20220111544 its reverse (44511102202), we get a palindrome (64731213746).

The spelling of 20220111544 in words is "twenty billion, two hundred twenty million, one hundred eleven thousand, five hundred forty-four".