2000000100021 has 64 divisors (see below), whose sum is σ = 3500073400320. Its totient is φ = 984162216960.

The previous prime is 2000000100013. The next prime is 2000000100037. The reversal of 2000000100021 is 1200010000002.

It is a happy number.

It is not a de Polignac number, because 2000000100021 - 2³ = 2000000100013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000000099982 and 2000000100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000000100061) 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, 45873985 + ... + 45917561.

It is an arithmetic number, because the mean of its divisors is an integer number (54688646880).

Almost surely, 2^{2000000100021} is an apocalyptic number.

2000000100021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2000000100021 is a deficient number, since it is larger than the sum of its proper divisors (1500073300299).

2000000100021 is a wasteful number, since it uses less digits than its factorization.

2000000100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54074.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 2000000100021 its reverse (1200010000002), we get a palindrome (3200010100023).

The spelling of 2000000100021 in words is "two trillion, one hundred thousand, twenty-one".