20222667 has 12 divisors (see below), whose sum is σ = 29262480. Its totient is φ = 13457808.

The previous prime is 20222621. The next prime is 20222689. The reversal of 20222667 is 76622202.

It is not a de Polignac number, because 20222667 - 2⁶ = 20222603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20222667.

It is not an unprimeable number, because it can be changed into a prime (20222767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4434 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (2438540).

Almost surely, 2^20222667 is an apocalyptic number.

20222667 is a deficient number, since it is larger than the sum of its proper divisors (9039813).

20222667 is a wasteful number, since it uses less digits than its factorization.

20222667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002 (or 3999 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20222667 is about 4496.9619744890. The cubic root of 20222667 is about 272.4453982568.

Adding to 20222667 its reverse (76622202), we get a palindrome (96844869).

The spelling of 20222667 in words is "twenty million, two hundred twenty-two thousand, six hundred sixty-seven".