1202020223221 has 16 divisors (see below), whose sum is σ = 1227086415808. Its totient is φ = 1177129324800.

The previous prime is 1202020223213. The next prime is 1202020223227. The reversal of 1202020223221 is 1223220202021.

It is a cyclic number.

It is not a de Polignac number, because 1202020223221 - 2³ = 1202020223213 is a prime.

It is a super-2 number, since 2×1202020223221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202020223227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90595630 + ... + 90608896.

It is an arithmetic number, because the mean of its divisors is an integer number (76692900988).

Almost surely, 2^{1202020223221} is an apocalyptic number.

It is an amenable number.

1202020223221 is a deficient number, since it is larger than the sum of its proper divisors (25066192587).

1202020223221 is a wasteful number, since it uses less digits than its factorization.

1202020223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19732.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1202020223221 its reverse (1223220202021), we get a palindrome (2425240425242).

It can be divided in two parts, 1202020 and 223221, that added together give a palindrome (1425241).

The spelling of 1202020223221 in words is "one trillion, two hundred two billion, twenty million, two hundred twenty-three thousand, two hundred twenty-one".