23021220221202 has 16 divisors (see below), whose sum is σ = 52619931934272. Its totient is φ = 6577491491760.

The previous prime is 23021220221173. The next prime is 23021220221239. The reversal of 23021220221202 is 20212202212032.

It is a super-3 number, since 3×23021220221202³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 274062145449 + ... + 274062145532.

It is an arithmetic number, because the mean of its divisors is an integer number (3288745745892).

Almost surely, 2^{23021220221202} is an apocalyptic number.

23021220221202 is an abundant number, since it is smaller than the sum of its proper divisors (29598711713070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23021220221202 is a wasteful number, since it uses less digits than its factorization.

23021220221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548124290993.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 23021220221202 its reverse (20212202212032), we get a palindrome (43233422433234).

The spelling of 23021220221202 in words is "twenty-three trillion, twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred two".