221111102022002 has 8 divisors (see below), whose sum is σ = 331667816485212. Its totient is φ = 110555163193600.

The previous prime is 221111102021959. The next prime is 221111102022011. The reversal of 221111102022002 is 200220201111122.

It can be written as a sum of positive squares in 2 ways, for example, as 178120013437921 + 42991088584081 = 13346161^2 + 6556759^2 .

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

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, 193195499 + ... + 194336622.

Almost surely, 2^{221111102022002} is an apocalyptic number.

221111102022002 is a deficient number, since it is larger than the sum of its proper divisors (110556714463210).

221111102022002 is a wasteful number, since it uses less digits than its factorization.

221111102022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387817404.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221111102022002 its reverse (200220201111122), we get a palindrome (421331303133124).

The spelling of 221111102022002 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred two million, twenty-two thousand, two".