1202221102121 has 8 divisors (see below), whose sum is σ = 1294752574080. Its totient is φ = 1109697190992.

The previous prime is 1202221102111. The next prime is 1202221102127. The reversal of 1202221102121 is 1212011222021.

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

It is not a de Polignac number, because 1202221102121 - 2⁶ = 1202221102057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202221102121.

It is not an unprimeable number, because it can be changed into a prime (1202221102127) 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, 1557791 + ... + 2197988.

It is an arithmetic number, because the mean of its divisors is an integer number (161844071760).

Almost surely, 2^{1202221102121} is an apocalyptic number.

It is an amenable number.

1202221102121 is a deficient number, since it is larger than the sum of its proper divisors (92531471959).

1202221102121 is a wasteful number, since it uses less digits than its factorization.

1202221102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780415.

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

Adding to 1202221102121 its reverse (1212011222021), we get a palindrome (2414232324142).

The spelling of 1202221102121 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-one".