22001222022 has 32 divisors (see below), whose sum is σ = 47554741248. Its totient is φ = 6745679136.

The previous prime is 22001222003. The next prime is 22001222039. The reversal of 22001222022 is 22022210022.

It is a super-2 number, since 2×22001222022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22001221992 and 22001222010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476278 + ... + 520425.

It is an arithmetic number, because the mean of its divisors is an integer number (1486085664).

Almost surely, 2^22001222022 is an apocalyptic number.

22001222022 is an abundant number, since it is smaller than the sum of its proper divisors (25553519226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22001222022 is a wasteful number, since it uses less digits than its factorization.

22001222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997004.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22001222022 its reverse (22022210022), we get a palindrome (44023432044).

The spelling of 22001222022 in words is "twenty-two billion, one million, two hundred twenty-two thousand, twenty-two".