20120221022202 has 24 divisors (see below), whose sum is σ = 49821499674336. Its totient is φ = 5748634577736.

The previous prime is 20120221022197. The next prime is 20120221022221. The reversal of 20120221022202 is 20222012202102.

20120221022202 is a `hidden beast` number, since 201 + 20 + 221 + 0 + 2 + 220 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79842146788 + ... + 79842147039.

It is an arithmetic number, because the mean of its divisors is an integer number (2075895819764).

Almost surely, 2^{20120221022202} is an apocalyptic number.

20120221022202 is an abundant number, since it is smaller than the sum of its proper divisors (29701278652134).

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

20120221022202 is a wasteful number, since it uses less digits than its factorization.

20120221022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159684293842 (or 159684293839 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20120221022202 its reverse (20222012202102), we get a palindrome (40342233224304).

The spelling of 20120221022202 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, twenty-two thousand, two hundred two".