22021221000202 has 8 divisors (see below), whose sum is σ = 33034095083556. Its totient is φ = 11009855972352.

The previous prime is 22021221000197. The next prime is 22021221000241. The reversal of 22021221000202 is 20200012212022.

It can be written as a sum of positive squares in 2 ways, for example, as 19025133491961 + 2996087508241 = 4361781^2 + 1730921^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377227393 + ... + 377285764.

Almost surely, 2^{22021221000202} is an apocalyptic number.

22021221000202 is a deficient number, since it is larger than the sum of its proper divisors (11012874083354).

22021221000202 is a wasteful number, since it uses less digits than its factorization.

22021221000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754527752.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021221000202 its reverse (20200012212022), we get a palindrome (42221233212224).

The spelling of 22021221000202 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-one million, two hundred two", and thus it is an aban number.