2201012221122 has 96 divisors (see below), whose sum is σ = 5708285908416. Its totient is φ = 604051344000.

The previous prime is 2201012221117. The next prime is 2201012221123. The reversal of 2201012221122 is 2211222101022.

It is a happy number.

2201012221122 is a `hidden beast` number, since 220 + 101 + 2 + 221 + 122 = 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 = 2201012221095 and 2201012221104.

It is not an unprimeable number, because it can be changed into a prime (2201012221123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7930504 + ... + 8203347.

It is an arithmetic number, because the mean of its divisors is an integer number (59461311546).

Almost surely, 2^{2201012221122} is an apocalyptic number.

2201012221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2201012221122 is an abundant number, since it is smaller than the sum of its proper divisors (3507273687294).

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

2201012221122 is a wasteful number, since it uses less digits than its factorization.

2201012221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16133936 (or 16133933 counting only the distinct ones).

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

Adding to 2201012221122 its reverse (2211222101022), we get a palindrome (4412234322144).

The spelling of 2201012221122 in words is "two trillion, two hundred one billion, twelve million, two hundred twenty-one thousand, one hundred twenty-two".