22121101221202 has 8 divisors (see below), whose sum is σ = 35133513704316. Its totient is φ = 10409929986432.

The previous prime is 22121101221103. The next prime is 22121101221209. The reversal of 22121101221202 is 20212210112122.

It can be written as a sum of positive squares in 2 ways, for example, as 21628815161041 + 492286060161 = 4650679^2 + 701631^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22121101221202.

It is not an unprimeable number, because it can be changed into a prime (22121101221209) 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, 325310312043 + ... + 325310312110.

Almost surely, 2^{22121101221202} is an apocalyptic number.

22121101221202 is a deficient number, since it is larger than the sum of its proper divisors (13012412483114).

22121101221202 is a wasteful number, since it uses less digits than its factorization.

22121101221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650620624172.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121101221202 its reverse (20212210112122), we get a palindrome (42333311333324).

The spelling of 22121101221202 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred one million, two hundred twenty-one thousand, two hundred two".