201021212120210 has 16 divisors (see below), whose sum is σ = 361848955582656. Its totient is φ = 80406090677808.

The previous prime is 201021212120167. The next prime is 201021212120227. The reversal of 201021212120210 is 12021212120102.

It is a Curzon number.

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, 298918622 + ... + 299590361.

It is an arithmetic number, because the mean of its divisors is an integer number (22615559723916).

Almost surely, 2^{201021212120210} is an apocalyptic number.

201021212120210 is a deficient number, since it is larger than the sum of its proper divisors (160827743462446).

201021212120210 is a wasteful number, since it uses less digits than its factorization.

201021212120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598542577.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201021212120210 its reverse (12021212120102), we get a palindrome (213042424240312).

The spelling of 201021212120210 in words is "two hundred one trillion, twenty-one billion, two hundred twelve million, one hundred twenty thousand, two hundred ten".