1202222212121 has 8 divisors (see below), whose sum is σ = 1421346457920. Its totient is φ = 994942520208.

The previous prime is 1202222212099. The next prime is 1202222212129. The reversal of 1202222212121 is 1212122222021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202222212121 - 2¹⁴ = 1202222195737 is a prime.

It is a super-2 number, since 2×1202222212121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202222212093 and 1202222212102.

It is not an unprimeable number, because it can be changed into a prime (1202222212129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961138251 + ... + 2961138656.

It is an arithmetic number, because the mean of its divisors is an integer number (177668307240).

Almost surely, 2^{1202222212121} is an apocalyptic number.

It is an amenable number.

1202222212121 is a deficient number, since it is larger than the sum of its proper divisors (219124245799).

1202222212121 is an equidigital number, since it uses as much as digits as its factorization.

1202222212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922276943.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1202222212121 its reverse (1212122222021), we get a palindrome (2414344434142).

The spelling of 1202222212121 in words is "one trillion, two hundred two billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".