20020022221222 has 4 divisors (see below), whose sum is σ = 30030033331836. Its totient is φ = 10010011110610.

The previous prime is 20020022221217. The next prime is 20020022221223. The reversal of 20020022221222 is 22212222002002.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20020022221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020022221223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005005555304 + ... + 5005005555307.

It is an arithmetic number, because the mean of its divisors is an integer number (7507508332959).

Almost surely, 2^{20020022221222} is an apocalyptic number.

20020022221222 is a deficient number, since it is larger than the sum of its proper divisors (10010011110614).

20020022221222 is a wasteful number, since it uses less digits than its factorization.

20020022221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010011110613.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20020022221222 its reverse (22212222002002), we get a palindrome (42232244223224).

It can be divided in two parts, 2002002 and 2221222, that added together give a palindrome (4223224).

The spelling of 20020022221222 in words is "twenty trillion, twenty billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".