1212220201122 has 96 divisors (see below), whose sum is σ = 3168840398400. Its totient is φ = 342457004736.

The previous prime is 1212220201121. The next prime is 1212220201187. The reversal of 1212220201122 is 2211020222121.

It is a happy number.

1212220201122 is a `hidden beast` number, since 121 + 2 + 220 + 201 + 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 = 1212220201095 and 1212220201104.

It is not an unprimeable number, because it can be changed into a prime (1212220201121) 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, 2338288 + ... + 2809275.

It is an arithmetic number, because the mean of its divisors is an integer number (33008754150).

Almost surely, 2^{1212220201122} is an apocalyptic number.

1212220201122 is an abundant number, since it is smaller than the sum of its proper divisors (1956620197278).

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

1212220201122 is a wasteful number, since it uses less digits than its factorization.

1212220201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5147677 (or 5147664 counting only the distinct ones).

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

Adding to 1212220201122 its reverse (2211020222121), we get a palindrome (3423240423243).

The spelling of 1212220201122 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred one thousand, one hundred twenty-two".