201101221022120 has 32 divisors (see below), whose sum is σ = 452489861626920. Its totient is φ = 80438334750720.

The previous prime is 201101221022089. The next prime is 201101221022123. The reversal of 201101221022120 is 21220122101102.

It can be written as a sum of positive squares in 4 ways, for example, as 156806845240516 + 44294375781604 = 12522254^2 + 6655402^2 .

It is not an unprimeable number, because it can be changed into a prime (201101221022123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65788697 + ... + 68777576.

Almost surely, 2^{201101221022120} is an apocalyptic number.

201101221022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201101221022120 is an abundant number, since it is smaller than the sum of its proper divisors (251388640604800).

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

201101221022120 is a wasteful number, since it uses less digits than its factorization.

201101221022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134603645 (or 134603641 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201101221022120 its reverse (21220122101102), we get a palindrome (222321343123222).

The spelling of 201101221022120 in words is "two hundred one trillion, one hundred one billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty".