1022004204221 has 32 divisors (see below), whose sum is σ = 1444422604800. Its totient is φ = 696418015680.

The previous prime is 1022004204217. The next prime is 1022004204257. The reversal of 1022004204221 is 1224024002201.

It is a cyclic number.

It is not a de Polignac number, because 1022004204221 - 2² = 1022004204217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022004204193 and 1022004204202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022004204121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26848961 + ... + 26886998.

It is an arithmetic number, because the mean of its divisors is an integer number (45138206400).

Almost surely, 2^{1022004204221} is an apocalyptic number.

1022004204221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022004204221 is a deficient number, since it is larger than the sum of its proper divisors (422418400579).

1022004204221 is a wasteful number, since it uses less digits than its factorization.

1022004204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53736009.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1022004204221 its reverse (1224024002201), we get a palindrome (2246028206422).

The spelling of 1022004204221 in words is "one trillion, twenty-two billion, four million, two hundred four thousand, two hundred twenty-one".