20122201021122 has 64 divisors (see below), whose sum is σ = 47239402646400. Its totient is φ = 6331439183040.

The previous prime is 20122201021063. The next prime is 20122201021127. The reversal of 20122201021122 is 22112010222102.

It is a happy number.

20122201021122 is a `hidden beast` number, since 201 + 2 + 220 + 10 + 211 + 22 = 666.

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 = 20122201021095 and 20122201021104.

It is not an unprimeable number, because it can be changed into a prime (20122201021127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35117029 + ... + 35685432.

It is an arithmetic number, because the mean of its divisors is an integer number (738115666350).

Almost surely, 2^{20122201021122} is an apocalyptic number.

20122201021122 is an abundant number, since it is smaller than the sum of its proper divisors (27117201625278).

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

20122201021122 is a wasteful number, since it uses less digits than its factorization.

20122201021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70802768 (or 70802762 counting only the distinct ones).

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

Adding to 20122201021122 its reverse (22112010222102), we get a palindrome (42234211243224).

The spelling of 20122201021122 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, twenty-one thousand, one hundred twenty-two".