200121344022042 has 128 divisors (see below), whose sum is σ = 446404548280320. Its totient is φ = 66454112387520.

The previous prime is 200121344022029. The next prime is 200121344022077. The reversal of 200121344022042 is 240220443121002.

It is a happy number.

200121344022042 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 2 + 13 + 440 + 2 + 204 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 200121344021997 and 200121344022015.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65894415348 + ... + 65894418384.

It is an arithmetic number, because the mean of its divisors is an integer number (3487535533440).

Almost surely, 2^{200121344022042} is an apocalyptic number.

200121344022042 is an abundant number, since it is smaller than the sum of its proper divisors (246283204258278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200121344022042 is a wasteful number, since it uses less digits than its factorization.

200121344022042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825 (or 6819 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 200121344022042 its reverse (240220443121002), we get a palindrome (440341787143044).

The spelling of 200121344022042 in words is "two hundred trillion, one hundred twenty-one billion, three hundred forty-four million, twenty-two thousand, forty-two".