20211143224 has 32 divisors (see below), whose sum is σ = 38416435200. Its totient is φ = 9967033440.

The previous prime is 20211143213. The next prime is 20211143231. The reversal of 20211143224 is 42234111202.

It is a super-2 number, since 2×20211143224² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211143195 and 20211143204.

It is a congruent number.

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, 594609 + ... + 627679.

It is an arithmetic number, because the mean of its divisors is an integer number (1200513600).

Almost surely, 2^20211143224 is an apocalyptic number.

It is an amenable number.

20211143224 is a deficient number, since it is larger than the sum of its proper divisors (18205291976).

20211143224 is a wasteful number, since it uses less digits than its factorization.

20211143224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34123 (or 34119 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20211143224 its reverse (42234111202), we get a palindrome (62445254426).

The spelling of 20211143224 in words is "twenty billion, two hundred eleven million, one hundred forty-three thousand, two hundred twenty-four".