20000021010212 has 12 divisors (see below), whose sum is σ = 36842143966320. Its totient is φ = 9473694162696.

The previous prime is 20000021010209. The next prime is 20000021010241. The reversal of 20000021010212 is 21201012000002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20000021010193 and 20000021010202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131579085518 + ... + 131579085669.

It is an arithmetic number, because the mean of its divisors is an integer number (3070178663860).

Almost surely, 2^{20000021010212} is an apocalyptic number.

It is an amenable number.

20000021010212 is a deficient number, since it is larger than the sum of its proper divisors (16842122956108).

20000021010212 is a wasteful number, since it uses less digits than its factorization.

20000021010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263158171210 (or 263158171208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000021010212 its reverse (21201012000002), we get a palindrome (41201033010214).

The spelling of 20000021010212 in words is "twenty trillion, twenty-one million, ten thousand, two hundred twelve".