2201122121022 has 48 divisors (see below), whose sum is σ = 5208544718208. Its totient is φ = 666251263440.

The previous prime is 2201122120903. The next prime is 2201122121047. The reversal of 2201122121022 is 2201212211022.

It is a happy number.

2201122121022 is a `hidden beast` number, since 220 + 11 + 221 + 210 + 2 + 2 = 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 = 2201122120986 and 2201122121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6120058 + ... + 6469725.

It is an arithmetic number, because the mean of its divisors is an integer number (108511348296).

Almost surely, 2^{2201122121022} is an apocalyptic number.

2201122121022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2201122121022 is an abundant number, since it is smaller than the sum of its proper divisors (3007422597186).

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

2201122121022 is a wasteful number, since it uses less digits than its factorization.

2201122121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12590685 (or 12590682 counting only the distinct ones).

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

Adding to 2201122121022 its reverse (2201212211022), we get a palindrome (4402334332044).

The spelling of 2201122121022 in words is "two trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".