1202210222121 has 16 divisors (see below), whose sum is σ = 1781251118400. Its totient is φ = 801383959584.

The previous prime is 1202210222119. The next prime is 1202210222131. The reversal of 1202210222121 is 1212220122021.

It is a happy number.

It is not a de Polignac number, because 1202210222121 - 2¹ = 1202210222119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1202210222094 and 1202210222103.

It is not an unprimeable number, because it can be changed into a prime (1202210222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2240071 + ... + 2724396.

It is an arithmetic number, because the mean of its divisors is an integer number (111328194900).

Almost surely, 2^{1202210222121} is an apocalyptic number.

It is an amenable number.

1202210222121 is a deficient number, since it is larger than the sum of its proper divisors (579040896279).

1202210222121 is an equidigital number, since it uses as much as digits as its factorization.

1202210222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973445 (or 4973439 counting only the distinct ones).

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

Adding to 1202210222121 its reverse (1212220122021), we get a palindrome (2414430344142).

The spelling of 1202210222121 in words is "one trillion, two hundred two billion, two hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".