101020210120221 has 36 divisors (see below), whose sum is σ = 161901786574656. Its totient is φ = 55863710587440.

The previous prime is 101020210120189. The next prime is 101020210120231. The reversal of 101020210120221 is 122021012020101.

It is not a de Polignac number, because 101020210120221 - 2⁵ = 101020210120189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101020210120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020210120231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 357409365 + ... + 357691898.

It is an arithmetic number, because the mean of its divisors is an integer number (4497271849296).

Almost surely, 2^{101020210120221} is an apocalyptic number.

It is an amenable number.

101020210120221 is a deficient number, since it is larger than the sum of its proper divisors (60881576454435).

101020210120221 is an equidigital number, since it uses as much as digits as its factorization.

101020210120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715101342 (or 715101304 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101020210120221 its reverse (122021012020101), we get a palindrome (223041222140322).

The spelling of 101020210120221 in words is "one hundred one trillion, twenty billion, two hundred ten million, one hundred twenty thousand, two hundred twenty-one".