1202122222221 has 32 divisors (see below), whose sum is σ = 1639154649600. Its totient is φ = 783417349440.

The previous prime is 1202122222211. The next prime is 1202122222247. The reversal of 1202122222221 is 1222222212021.

It is not a de Polignac number, because 1202122222221 - 2⁶ = 1202122222157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202122222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22763970 + ... + 22816716.

It is an arithmetic number, because the mean of its divisors is an integer number (51223582800).

Almost surely, 2^{1202122222221} is an apocalyptic number.

It is an amenable number.

1202122222221 is a deficient number, since it is larger than the sum of its proper divisors (437032427379).

1202122222221 is a wasteful number, since it uses less digits than its factorization.

1202122222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53529.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1202122222221 its reverse (1222222212021), we get a palindrome (2424344434242).

The spelling of 1202122222221 in words is "one trillion, two hundred two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-one".