201021212212010 has 16 divisors (see below), whose sum is σ = 377570276850816. Its totient is φ = 76912463802768.

The previous prime is 201021212211961. The next prime is 201021212212019. The reversal of 201021212212010 is 10212212120102.

It is a self number, because there is not a number n which added to its sum of digits gives 201021212212010.

It is not an unprimeable number, because it can be changed into a prime (201021212212019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437002635014 + ... + 437002635473.

It is an arithmetic number, because the mean of its divisors is an integer number (23598142303176).

Almost surely, 2^{201021212212010} is an apocalyptic number.

201021212212010 is a deficient number, since it is larger than the sum of its proper divisors (176549064638806).

201021212212010 is a wasteful number, since it uses less digits than its factorization.

201021212212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874005270517.

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

Adding to 201021212212010 its reverse (10212212120102), we get a palindrome (211233424332112).

The spelling of 201021212212010 in words is "two hundred one trillion, twenty-one billion, two hundred twelve million, two hundred twelve thousand, ten".