221020021202002 has 32 divisors (see below), whose sum is σ = 361780867474560. Its totient is φ = 100432608756480.

The previous prime is 221020021201919. The next prime is 221020021202003. The reversal of 221020021202002 is 200202120020122.

It is not an unprimeable number, because it can be changed into a prime (221020021202003) 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, 3951909763 + ... + 3951965689.

It is an arithmetic number, because the mean of its divisors is an integer number (11305652108580).

Almost surely, 2^{221020021202002} is an apocalyptic number.

221020021202002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221020021202002 is a deficient number, since it is larger than the sum of its proper divisors (140760846272558).

221020021202002 is a wasteful number, since it uses less digits than its factorization.

221020021202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108226.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221020021202002 its reverse (200202120020122), we get a palindrome (421222141222124).

The spelling of 221020021202002 in words is "two hundred twenty-one trillion, twenty billion, twenty-one million, two hundred two thousand, two".