200121110012010 has 32 divisors (see below), whose sum is σ = 523953451668672. Its totient is φ = 48514208487680.

The previous prime is 200121110011993. The next prime is 200121110012011. The reversal of 200121110012010 is 10210011121002.

It is not an unprimeable number, because it can be changed into a prime (200121110012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303213802719 + ... + 303213803378.

It is an arithmetic number, because the mean of its divisors is an integer number (16373545364646).

Almost surely, 2^{200121110012010} is an apocalyptic number.

200121110012010 is an abundant number, since it is smaller than the sum of its proper divisors (323832341656662).

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

200121110012010 is a wasteful number, since it uses less digits than its factorization.

200121110012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606427606118.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 200121110012010 its reverse (10210011121002), we get a palindrome (210331121133012).

The spelling of 200121110012010 in words is "two hundred trillion, one hundred twenty-one billion, one hundred ten million, twelve thousand, ten".