201020101220122 has 32 divisors (see below), whose sum is σ = 311351263074000. Its totient is φ = 97303873886208.

The previous prime is 201020101220111. The next prime is 201020101220131. The reversal of 201020101220122 is 221022101020102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 84848803018281 + 116171298201841 = 9211341^2 + 10778279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201020101220096 and 201020101220105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54680497 + ... + 58240852.

Almost surely, 2^{201020101220122} is an apocalyptic number.

201020101220122 is a deficient number, since it is larger than the sum of its proper divisors (110331161853878).

201020101220122 is a wasteful number, since it uses less digits than its factorization.

201020101220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112921650.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201020101220122 its reverse (221022101020102), we get a palindrome (422042202240224).

The spelling of 201020101220122 in words is "two hundred one trillion, twenty billion, one hundred one million, two hundred twenty thousand, one hundred twenty-two".