22021221122022 has 8 divisors (see below), whose sum is σ = 44042442244056. Its totient is φ = 7340407040672.

The previous prime is 22021221121979. The next prime is 22021221122029. The reversal of 22021221122022 is 22022112212022.

It is a sphenic number, since it is the product of 3 distinct primes.

22021221122022 is an admirable number.

It is a super-2 number, since 2×22021221122022² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22021221122022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021221122029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1835101760163 + ... + 1835101760174.

It is an arithmetic number, because the mean of its divisors is an integer number (5505305280507).

Almost surely, 2^{22021221122022} is an apocalyptic number.

22021221122022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22021221122022 is a wasteful number, since it uses less digits than its factorization.

22021221122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670203520342.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22021221122022 its reverse (22022112212022), we get a palindrome (44043333334044).

The spelling of 22021221122022 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty-two thousand, twenty-two".