1222201010121 has 32 divisors (see below), whose sum is σ = 2059870326528. Its totient is φ = 627253735680.

The previous prime is 1222201010099. The next prime is 1222201010123. The reversal of 1222201010121 is 1210101022221.

It is not a de Polignac number, because 1222201010121 - 2⁶ = 1222201010057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222201010121.

It is not an unprimeable number, because it can be changed into a prime (1222201010123) 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, 60488910 + ... + 60509111.

It is an arithmetic number, because the mean of its divisors is an integer number (64370947704).

Almost surely, 2^{1222201010121} is an apocalyptic number.

It is an amenable number.

1222201010121 is a deficient number, since it is larger than the sum of its proper divisors (837669316407).

1222201010121 is a wasteful number, since it uses less digits than its factorization.

1222201010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120998081.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222201010121 its reverse (1210101022221), we get a palindrome (2432302032342).

The spelling of 1222201010121 in words is "one trillion, two hundred twenty-two billion, two hundred one million, ten thousand, one hundred twenty-one".