200010120100021 has 64 divisors (see below), whose sum is σ = 252149366016000. Its totient is φ = 154121468256000.

The previous prime is 200010120099941. The next prime is 200010120100031. The reversal of 200010120100021 is 120001021010002.

It is not a de Polignac number, because 200010120100021 - 2⁷ = 200010120099893 is a prime.

It is a super-3 number, since 3×200010120100021³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200010120099980 and 200010120100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200010120100031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2448033471 + ... + 2448115171.

It is an arithmetic number, because the mean of its divisors is an integer number (3939833844000).

Almost surely, 2^{200010120100021} is an apocalyptic number.

It is an amenable number.

200010120100021 is a deficient number, since it is larger than the sum of its proper divisors (52139245915979).

200010120100021 is a wasteful number, since it uses less digits than its factorization.

200010120100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82810.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200010120100021 its reverse (120001021010002), we get a palindrome (320011141110023).

It can be divided in two parts, 2000101 and 20100021, that added together give a palindrome (22100122).

The spelling of 200010120100021 in words is "two hundred trillion, ten billion, one hundred twenty million, one hundred thousand, twenty-one".