201002120210 has 16 divisors (see below), whose sum is σ = 383086394136. Its totient is φ = 75671386368.

The previous prime is 201002120203. The next prime is 201002120239. The reversal of 201002120210 is 12021200102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 200164075609 + 838044601 = 447397^2 + 28949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201002120191 and 201002120200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591182537 + ... + 591182876.

Almost surely, 2^201002120210 is an apocalyptic number.

201002120210 is a deficient number, since it is larger than the sum of its proper divisors (182084273926).

201002120210 is a wasteful number, since it uses less digits than its factorization.

201002120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182365437.

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

Adding to 201002120210 its reverse (12021200102), we get a palindrome (213023320312).

The spelling of 201002120210 in words is "two hundred one billion, two million, one hundred twenty thousand, two hundred ten".