101012102020221 has 16 divisors (see below), whose sum is σ = 154561888576128. Its totient is φ = 57481694092800.

The previous prime is 101012102020213. The next prime is 101012102020243. The reversal of 101012102020221 is 122020201210101.

It is not a de Polignac number, because 101012102020221 - 2³ = 101012102020213 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101012102020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012102000221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9979455720 + ... + 9979465841.

It is an arithmetic number, because the mean of its divisors is an integer number (9660118036008).

Almost surely, 2^{101012102020221} is an apocalyptic number.

It is an amenable number.

101012102020221 is a deficient number, since it is larger than the sum of its proper divisors (53549786555907).

101012102020221 is a wasteful number, since it uses less digits than its factorization.

101012102020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19958921812.

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

Adding to 101012102020221 its reverse (122020201210101), we get a palindrome (223032303230322).

The spelling of 101012102020221 in words is "one hundred one trillion, twelve billion, one hundred two million, twenty thousand, two hundred twenty-one".