20220454426 has 4 divisors (see below), whose sum is σ = 30330681642. Its totient is φ = 10110227212.

The previous prime is 20220454403. The next prime is 20220454459. The reversal of 20220454426 is 62445402202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62445402202 = 2 ⋅31222701101.

It can be written as a sum of positive squares in only one way, i.e., 15623750025 + 4596704401 = 124995^2 + 67799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055113605 + ... + 5055113608.

Almost surely, 2^20220454426 is an apocalyptic number.

20220454426 is a deficient number, since it is larger than the sum of its proper divisors (10110227216).

20220454426 is a wasteful number, since it uses less digits than its factorization.

20220454426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110227215.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 20220454426 its reverse (62445402202), we get a palindrome (82665856628).

The spelling of 20220454426 in words is "twenty billion, two hundred twenty million, four hundred fifty-four thousand, four hundred twenty-six".