200121121002112 has 64 divisors (see below), whose sum is σ = 398895619046400. Its totient is φ = 100006151076864.

The previous prime is 200121121002107. The next prime is 200121121002181. The reversal of 200121121002112 is 211200121121002.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×200121121002112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3624501418 + ... + 3624556630.

It is an arithmetic number, because the mean of its divisors is an integer number (6232744047600).

Almost surely, 2^{200121121002112} is an apocalyptic number.

It is an amenable number.

200121121002112 is a deficient number, since it is larger than the sum of its proper divisors (198774498044288).

200121121002112 is a wasteful number, since it uses less digits than its factorization.

200121121002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70113 (or 70101 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200121121002112 its reverse (211200121121002), we get a palindrome (411321242123114).

The spelling of 200121121002112 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twenty-one million, two thousand, one hundred twelve".