1202110222121 has 4 divisors (see below), whose sum is σ = 1265379181200. Its totient is φ = 1138841263044.

The previous prime is 1202110222097. The next prime is 1202110222151. The reversal of 1202110222121 is 1212220112021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202110222121 - 2³⁰ = 1201036480297 is a prime.

It is a super-2 number, since 2×1202110222121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202110222121.

It is not an unprimeable number, because it can be changed into a prime (1202110222151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31634479511 + ... + 31634479548.

It is an arithmetic number, because the mean of its divisors is an integer number (316344795300).

Almost surely, 2^{1202110222121} is an apocalyptic number.

It is an amenable number.

1202110222121 is a deficient number, since it is larger than the sum of its proper divisors (63268959079).

1202110222121 is an equidigital number, since it uses as much as digits as its factorization.

1202110222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63268959078.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1202110222121 its reverse (1212220112021), we get a palindrome (2414330334142).

The spelling of 1202110222121 in words is "one trillion, two hundred two billion, one hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".