200102222100121 has 4 divisors (see below), whose sum is σ = 218293333200144. Its totient is φ = 181911111000100.

The previous prime is 200102222100107. The next prime is 200102222100167. The reversal of 200102222100121 is 121001222201002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200102222100121 - 2¹⁷ = 200102221969049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102222100095 and 200102222100104.

It is not an unprimeable number, because it can be changed into a prime (200102222100181) 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, 9095555549995 + ... + 9095555550016.

It is an arithmetic number, because the mean of its divisors is an integer number (54573333300036).

Almost surely, 2^{200102222100121} is an apocalyptic number.

It is an amenable number.

200102222100121 is a deficient number, since it is larger than the sum of its proper divisors (18191111100023).

200102222100121 is a wasteful number, since it uses less digits than its factorization.

200102222100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191111100022.

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

Adding to 200102222100121 its reverse (121001222201002), we get a palindrome (321103444301123).

The spelling of 200102222100121 in words is "two hundred trillion, one hundred two billion, two hundred twenty-two million, one hundred thousand, one hundred twenty-one".