1202222111221 has 8 divisors (see below), whose sum is σ = 1267257052800. Its totient is φ = 1137363179040.

The previous prime is 1202222111213. The next prime is 1202222111231. The reversal of 1202222111221 is 1221112222021.

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

It is a cyclic number.

It is not a de Polignac number, because 1202222111221 - 2³ = 1202222111213 is a prime.

It is a super-2 number, since 2×1202222111221² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202222111231) 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, 43988320 + ... + 44015641.

It is an arithmetic number, because the mean of its divisors is an integer number (158407131600).

Almost surely, 2^{1202222111221} is an apocalyptic number.

It is an amenable number.

1202222111221 is a deficient number, since it is larger than the sum of its proper divisors (65034941579).

1202222111221 is an equidigital number, since it uses as much as digits as its factorization.

1202222111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88004699.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1202222111221 its reverse (1221112222021), we get a palindrome (2423334333242).

The spelling of 1202222111221 in words is "one trillion, two hundred two billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-one".