201021102101010 has 64 divisors (see below), whose sum is σ = 486274487242752. Its totient is φ = 53180799307776.

The previous prime is 201021102100943. The next prime is 201021102101081. The reversal of 201021102101010 is 10101201120102.

201021102101010 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 73240834 + ... + 75935906.

It is an arithmetic number, because the mean of its divisors is an integer number (7598038863168).

Almost surely, 2^{201021102101010} is an apocalyptic number.

201021102101010 is an abundant number, since it is smaller than the sum of its proper divisors (285253385141742).

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

201021102101010 is a wasteful number, since it uses less digits than its factorization.

201021102101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714787.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201021102101010 its reverse (10101201120102), we get a palindrome (211122303221112).

The spelling of 201021102101010 in words is "two hundred one trillion, twenty-one billion, one hundred two million, one hundred one thousand, ten".