202120011201222 has 40 divisors (see below), whose sum is σ = 452998149082776. Its totient is φ = 67358519725248.

The previous prime is 202120011201209. The next prime is 202120011201223. The reversal of 202120011201222 is 222102110021202.

It is a happy number.

202120011201222 is a `hidden beast` number, since 20 + 21 + 200 + 1 + 1 + 201 + 222 = 666.

202120011201222 is digitally balanced in base 3, 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 a junction number, because it is equal to n+sod(n) for n = 202120011201195 and 202120011201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120011201223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136458723 + ... + 137931950.

Almost surely, 2^{202120011201222} is an apocalyptic number.

202120011201222 is an abundant number, since it is smaller than the sum of its proper divisors (250878137881554).

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

202120011201222 is a wasteful number, since it uses less digits than its factorization.

202120011201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274395234 (or 274395225 counting only the distinct ones).

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

Adding to 202120011201222 its reverse (222102110021202), we get a palindrome (424222121222424).

The spelling of 202120011201222 in words is "two hundred two trillion, one hundred twenty billion, eleven million, two hundred one thousand, two hundred twenty-two".