221200001102 has 4 divisors (see below), whose sum is σ = 331800001656. Its totient is φ = 110600000550.

The previous prime is 221200001101. The next prime is 221200001111. The reversal of 221200001102 is 201100002122.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200001101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55300000274 + ... + 55300000277.

It is an arithmetic number, because the mean of its divisors is an integer number (82950000414).

Almost surely, 2^221200001102 is an apocalyptic number.

221200001102 is a deficient number, since it is larger than the sum of its proper divisors (110600000554).

221200001102 is a wasteful number, since it uses less digits than its factorization.

221200001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110600000553.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221200001102 its reverse (201100002122), we get a palindrome (422300003224).

The spelling of 221200001102 in words is "two hundred twenty-one billion, two hundred million, one thousand, one hundred two".