200001122002121 has 8 divisors (see below), whose sum is σ = 218192347836864. Its totient is φ = 181811447109520.

The previous prime is 200001122002117. The next prime is 200001122002247. The reversal of 200001122002121 is 121200221100002.

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

It is a cyclic number.

It is not a de Polignac number, because 200001122002121 - 2² = 200001122002117 is a prime.

It is a super-4 number, since 4×200001122002121⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200001122002096 and 200001122002105.

It is not an unprimeable number, because it can be changed into a prime (200001122002021) 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, 387465890 + ... + 387981723.

It is an arithmetic number, because the mean of its divisors is an integer number (27274043479608).

Almost surely, 2^{200001122002121} is an apocalyptic number.

It is an amenable number.

200001122002121 is a deficient number, since it is larger than the sum of its proper divisors (18191225834743).

200001122002121 is a wasteful number, since it uses less digits than its factorization.

200001122002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775471071.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200001122002121 its reverse (121200221100002), we get a palindrome (321201343102123).

The spelling of 200001122002121 in words is "two hundred trillion, one billion, one hundred twenty-two million, two thousand, one hundred twenty-one".