22121001020022 has 8 divisors (see below), whose sum is σ = 44242002040056. Its totient is φ = 7373667006672.

The previous prime is 22121001020017. The next prime is 22121001020029. The reversal of 22121001020022 is 22002010012122.

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

22121001020022 is an admirable number.

It is a super-2 number, since 2×22121001020022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22121001019983 and 22121001020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121001020029) 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, 1843416751663 + ... + 1843416751674.

It is an arithmetic number, because the mean of its divisors is an integer number (5530250255007).

Almost surely, 2^{22121001020022} is an apocalyptic number.

22121001020022 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.

22121001020022 is a wasteful number, since it uses less digits than its factorization.

22121001020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686833503342.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22121001020022 its reverse (22002010012122), we get a palindrome (44123011032144).

The spelling of 22121001020022 in words is "twenty-two trillion, one hundred twenty-one billion, one million, twenty thousand, twenty-two".