221101020002222 has 4 divisors (see below), whose sum is σ = 331651530003336. Its totient is φ = 110550510001110.

The previous prime is 221101020002197. The next prime is 221101020002243. The reversal of 221101020002222 is 222200020101122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×221101020002222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221101020002222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55275255000554 + ... + 55275255000557.

It is an arithmetic number, because the mean of its divisors is an integer number (82912882500834).

Almost surely, 2^{221101020002222} is an apocalyptic number.

221101020002222 is a deficient number, since it is larger than the sum of its proper divisors (110550510001114).

221101020002222 is a wasteful number, since it uses less digits than its factorization.

221101020002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110550510001113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221101020002222 its reverse (222200020101122), we get a palindrome (443301040103344).

The spelling of 221101020002222 in words is "two hundred twenty-one trillion, one hundred one billion, twenty million, two thousand, two hundred twenty-two".