200121220102222 has 4 divisors (see below), whose sum is σ = 300181830153336. Its totient is φ = 100060610051110.

The previous prime is 200121220102213. The next prime is 200121220102301. The reversal of 200121220102222 is 222201022121002.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 200121220102222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50030305025554 + ... + 50030305025557.

It is an arithmetic number, because the mean of its divisors is an integer number (75045457538334).

Almost surely, 2^{200121220102222} is an apocalyptic number.

200121220102222 is a deficient number, since it is larger than the sum of its proper divisors (100060610051114).

200121220102222 is a wasteful number, since it uses less digits than its factorization.

200121220102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100060610051113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200121220102222 its reverse (222201022121002), we get a palindrome (422322242223224).

The spelling of 200121220102222 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred two thousand, two hundred twenty-two".