101221201022202 has 48 divisors (see below), whose sum is σ = 231419257917120. Its totient is φ = 31910803632576.

The previous prime is 101221201022197. The next prime is 101221201022209. The reversal of 101221201022202 is 202220102122101.

It is a happy number.

101221201022202 is a `hidden beast` number, since 101 + 221 + 20 + 102 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101221201022209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1373534248 + ... + 1373607939.

It is an arithmetic number, because the mean of its divisors is an integer number (4821234539940).

Almost surely, 2^{101221201022202} is an apocalyptic number.

101221201022202 is an abundant number, since it is smaller than the sum of its proper divisors (130198056894918).

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

101221201022202 is a wasteful number, since it uses less digits than its factorization.

101221201022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747142307 (or 2747142304 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101221201022202 its reverse (202220102122101), we get a palindrome (303441303144303).

The spelling of 101221201022202 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred one million, twenty-two thousand, two hundred two".