202121000001222 has 8 divisors (see below), whose sum is σ = 404242000002456. Its totient is φ = 67373666667072.

The previous prime is 202121000001199. The next prime is 202121000001223. The reversal of 202121000001222 is 222100000121202.

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

202121000001222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121000001223) 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, 16843416666763 + ... + 16843416666774.

It is an arithmetic number, because the mean of its divisors is an integer number (50530250000307).

Almost surely, 2^{202121000001222} is an apocalyptic number.

202121000001222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202121000001222 is a wasteful number, since it uses less digits than its factorization.

202121000001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33686833333542.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202121000001222 its reverse (222100000121202), we get a palindrome (424221000122424).

The spelling of 202121000001222 in words is "two hundred two trillion, one hundred twenty-one billion, one thousand, two hundred twenty-two".