22120221022 has 4 divisors (see below), whose sum is σ = 33180331536. Its totient is φ = 11060110510.

The previous prime is 22120221017. The next prime is 22120221023. The reversal of 22120221022 is 22012202122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22120220987 and 22120221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120221023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530055254 + ... + 5530055257.

It is an arithmetic number, because the mean of its divisors is an integer number (8295082884).

Almost surely, 2^22120221022 is an apocalyptic number.

22120221022 is a deficient number, since it is larger than the sum of its proper divisors (11060110514).

22120221022 is a wasteful number, since it uses less digits than its factorization.

22120221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060110513.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22120221022 its reverse (22012202122), we get a palindrome (44132423144).

The spelling of 22120221022 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, twenty-two".