221220022021202 has 8 divisors (see below), whose sum is σ = 332897010630912. Its totient is φ = 110254351810900.

The previous prime is 221220022021199. The next prime is 221220022021261. The reversal of 221220022021202 is 202120220022122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×221220022021202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177829599074 + ... + 177829600317.

It is an arithmetic number, because the mean of its divisors is an integer number (41612126328864).

Almost surely, 2^{221220022021202} is an apocalyptic number.

221220022021202 is a deficient number, since it is larger than the sum of its proper divisors (111676988609710).

221220022021202 is a wasteful number, since it uses less digits than its factorization.

221220022021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355659199704.

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

Adding to 221220022021202 its reverse (202120220022122), we get a palindrome (423340242043324).

The spelling of 221220022021202 in words is "two hundred twenty-one trillion, two hundred twenty billion, twenty-two million, twenty-one thousand, two hundred two".