22211002220021 has 8 divisors (see below), whose sum is σ = 22431766790400. Its totient is φ = 21990546630000.

The previous prime is 22211002219981. The next prime is 22211002220027. The reversal of 22211002220021 is 12002220011222.

It is a happy number.

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 22211002220021 - 2¹⁰ = 22211002218997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211002220027) 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, 77100605 + ... + 77388146.

It is an arithmetic number, because the mean of its divisors is an integer number (2803970848800).

Almost surely, 2^{22211002220021} is an apocalyptic number.

It is an amenable number.

22211002220021 is a deficient number, since it is larger than the sum of its proper divisors (220764570379).

22211002220021 is a wasteful number, since it uses less digits than its factorization.

22211002220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154490179.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22211002220021 its reverse (12002220011222), we get a palindrome (34213222231243).

The spelling of 22211002220021 in words is "twenty-two trillion, two hundred eleven billion, two million, two hundred twenty thousand, twenty-one".