201020012102210 has 64 divisors (see below), whose sum is σ = 420541011475200. Its totient is φ = 67752154321152.

The previous prime is 201020012102201. The next prime is 201020012102251. The reversal of 201020012102210 is 12201210020102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397437356 + ... + 397942824.

It is an arithmetic number, because the mean of its divisors is an integer number (6570953304300).

Almost surely, 2^{201020012102210} is an apocalyptic number.

201020012102210 is an abundant number, since it is smaller than the sum of its proper divisors (219520999372990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201020012102210 is a wasteful number, since it uses less digits than its factorization.

201020012102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601835.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201020012102210 its reverse (12201210020102), we get a palindrome (213221222122312).

The spelling of 201020012102210 in words is "two hundred one trillion, twenty billion, twelve million, one hundred two thousand, two hundred ten".