22002121220101 has 4 divisors (see below), whose sum is σ = 24002314058304. Its totient is φ = 20001928381900.

The previous prime is 22002121220083. The next prime is 22002121220143. The reversal of 22002121220101 is 10102212120022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22002121220101 - 2³⁷ = 21864682266629 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 (22002121224101) 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, 1000096419085 + ... + 1000096419106.

It is an arithmetic number, because the mean of its divisors is an integer number (6000578514576).

Almost surely, 2^{22002121220101} is an apocalyptic number.

It is an amenable number.

22002121220101 is a deficient number, since it is larger than the sum of its proper divisors (2000192838203).

22002121220101 is a wasteful number, since it uses less digits than its factorization.

22002121220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000192838202.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22002121220101 its reverse (10102212120022), we get a palindrome (32104333340123).

It can be divided in two parts, 22002121 and 220101, that added together give a palindrome (22222222).

The spelling of 22002121220101 in words is "twenty-two trillion, two billion, one hundred twenty-one million, two hundred twenty thousand, one hundred one".