201021000221010 has 64 divisors (see below), whose sum is σ = 504877302346752. Its totient is φ = 51127155389376.

The previous prime is 201021000220951. The next prime is 201021000221021. The reversal of 201021000221010 is 10122000120102.

It is a super-3 number, since 3×201021000221010³ (a number of 44 digits) contains 333 as substring.

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, 419551324 + ... + 420030183.

It is an arithmetic number, because the mean of its divisors is an integer number (7888707849168).

Almost surely, 2^{201021000221010} is an apocalyptic number.

201021000221010 is an abundant number, since it is smaller than the sum of its proper divisors (303856302125742).

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

201021000221010 is a wasteful number, since it uses less digits than its factorization.

201021000221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839581887.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201021000221010 its reverse (10122000120102), we get a palindrome (211143000341112).

The spelling of 201021000221010 in words is "two hundred one trillion, twenty-one billion, two hundred twenty-one thousand, ten".