100200120210021 has 16 divisors (see below), whose sum is σ = 144291727105344. Its totient is φ = 61483913257344.

The previous prime is 100200120209971. The next prime is 100200120210031. The reversal of 100200120210021 is 120012021002001.

It is not a de Polignac number, because 100200120210021 - 2¹⁰ = 100200120208997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100200120209979 and 100200120210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200120210031) 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, 3702052536 + ... + 3702079601.

It is an arithmetic number, because the mean of its divisors is an integer number (9018232944084).

Almost surely, 2^{100200120210021} is an apocalyptic number.

It is an amenable number.

100200120210021 is a deficient number, since it is larger than the sum of its proper divisors (44091606895323).

100200120210021 is a wasteful number, since it uses less digits than its factorization.

100200120210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404132500.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100200120210021 its reverse (120012021002001), we get a palindrome (220212141212022).

The spelling of 100200120210021 in words is "one hundred trillion, two hundred billion, one hundred twenty million, two hundred ten thousand, twenty-one".