20001002120210 has 32 divisors (see below), whose sum is σ = 36035225498880. Its totient is φ = 7992975923712.

The previous prime is 20001002120201. The next prime is 20001002120221. The reversal of 20001002120210 is 1202120010002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20001002120191 and 20001002120200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77593721 + ... + 77851059.

It is an arithmetic number, because the mean of its divisors is an integer number (1126100796840).

Almost surely, 2^{20001002120210} is an apocalyptic number.

20001002120210 is a deficient number, since it is larger than the sum of its proper divisors (16034223378670).

20001002120210 is a wasteful number, since it uses less digits than its factorization.

20001002120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264530.

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

Adding to 20001002120210 its reverse (1202120010002), we get a palindrome (21203122130212).

The spelling of 20001002120210 in words is "twenty trillion, one billion, two million, one hundred twenty thousand, two hundred ten".