201121012220202 has 32 divisors (see below), whose sum is σ = 462347154532800. Its totient is φ = 64728601633584.

The previous prime is 201121012220201. The next prime is 201121012220269. The reversal of 201121012220202 is 202022210121102.

It is a happy number.

201121012220202 is a `hidden beast` number, since 20 + 1 + 1 + 210 + 12 + 220 + 202 = 666.

201121012220202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (201121012220201) 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, 64214881008 + ... + 64214884139.

It is an arithmetic number, because the mean of its divisors is an integer number (14448348579150).

Almost surely, 2^{201121012220202} is an apocalyptic number.

201121012220202 is an abundant number, since it is smaller than the sum of its proper divisors (261226142312598).

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

201121012220202 is a wasteful number, since it uses less digits than its factorization.

201121012220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128429765187 (or 128429765181 counting only the distinct ones).

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

Adding to 201121012220202 its reverse (202022210121102), we get a palindrome (403143222341304).

The spelling of 201121012220202 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, two hundred twenty thousand, two hundred two".