200121102100222 has 16 divisors (see below), whose sum is σ = 302361954044544. Its totient is φ = 99334627695000.

The previous prime is 200121102100177. The next prime is 200121102100229. The reversal of 200121102100222 is 222001201121002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 200121102100196 and 200121102100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121102100229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210427104 + ... + 211375987.

It is an arithmetic number, because the mean of its divisors is an integer number (18897622127784).

Almost surely, 2^{200121102100222} is an apocalyptic number.

200121102100222 is a deficient number, since it is larger than the sum of its proper divisors (102240851944322).

200121102100222 is a wasteful number, since it uses less digits than its factorization.

200121102100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421804815.

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

Adding to 200121102100222 its reverse (222001201121002), we get a palindrome (422122303221224).

The spelling of 200121102100222 in words is "two hundred trillion, one hundred twenty-one billion, one hundred two million, one hundred thousand, two hundred twenty-two".