221122021002 has 32 divisors (see below), whose sum is σ = 474853601664. Its totient is φ = 68394547200.

The previous prime is 221122020971. The next prime is 221122021009. The reversal of 221122021002 is 200120221122.

It is a super-3 number, since 3×221122021002³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (221122021009) 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, 15259399 + ... + 15273882.

It is an arithmetic number, because the mean of its divisors is an integer number (14839175052).

Almost surely, 2^221122021002 is an apocalyptic number.

221122021002 is an abundant number, since it is smaller than the sum of its proper divisors (253731580662).

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

221122021002 is a wasteful number, since it uses less digits than its factorization.

221122021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30533374.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221122021002 its reverse (200120221122), we get a palindrome (421242242124).

The spelling of 221122021002 in words is "two hundred twenty-one billion, one hundred twenty-two million, twenty-one thousand, two".