221022011102 has 4 divisors (see below), whose sum is σ = 331533016656. Its totient is φ = 110511005550.

The previous prime is 221022011081. The next prime is 221022011131. The reversal of 221022011102 is 201110220122.

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

It is a super-2 number, since 2×221022011102² (a number of 23 digits) contains 22 as substring.

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, 55255502774 + ... + 55255502777.

It is an arithmetic number, because the mean of its divisors is an integer number (82883254164).

Almost surely, 2^221022011102 is an apocalyptic number.

221022011102 is a deficient number, since it is larger than the sum of its proper divisors (110511005554).

221022011102 is a wasteful number, since it uses less digits than its factorization.

221022011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110511005553.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221022011102 its reverse (201110220122), we get a palindrome (422132231224).

The spelling of 221022011102 in words is "two hundred twenty-one billion, twenty-two million, eleven thousand, one hundred two".