22220221120021 has 8 divisors (see below), whose sum is σ = 22315065408000. Its totient is φ = 22125578415360.

The previous prime is 22220221119937. The next prime is 22220221120103. The reversal of 22220221120021 is 12002112202222.

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

It is a cyclic number.

It is not a de Polignac number, because 22220221120021 - 2¹⁷ = 22220220988949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220221126021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50174901 + ... + 50615818.

It is an arithmetic number, because the mean of its divisors is an integer number (2789383176000).

Almost surely, 2^{22220221120021} is an apocalyptic number.

It is an amenable number.

22220221120021 is a deficient number, since it is larger than the sum of its proper divisors (94844287979).

22220221120021 is a wasteful number, since it uses less digits than its factorization.

22220221120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100791659.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22220221120021 its reverse (12002112202222), we get a palindrome (34222333322243).

The spelling of 22220221120021 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, one hundred twenty thousand, twenty-one".