20221140554 has 8 divisors (see below), whose sum is σ = 30615185088. Its totient is φ = 10016078860.

The previous prime is 20221140553. The next prime is 20221140593. The reversal of 20221140554 is 45504112202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20221140553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47245442 + ... + 47245869.

It is an arithmetic number, because the mean of its divisors is an integer number (3826898136).

Almost surely, 2^20221140554 is an apocalyptic number.

20221140554 is a deficient number, since it is larger than the sum of its proper divisors (10394044534).

20221140554 is a wasteful number, since it uses less digits than its factorization.

20221140554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94491420.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 20221140554 its reverse (45504112202), we get a palindrome (65725252756).

The spelling of 20221140554 in words is "twenty billion, two hundred twenty-one million, one hundred forty thousand, five hundred fifty-four".