2221021102 has 32 divisors (see below), whose sum is σ = 3526988544. Its totient is φ = 1047513600.

The previous prime is 2221021087. The next prime is 2221021129. The reversal of 2221021102 is 2011201222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424768 + ... + 429964.

It is an arithmetic number, because the mean of its divisors is an integer number (110218392).

Almost surely, 2^2221021102 is an apocalyptic number.

2221021102 is a deficient number, since it is larger than the sum of its proper divisors (1305967442).

2221021102 is a wasteful number, since it uses less digits than its factorization.

2221021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221021102 is about 47127.7105533464. The cubic root of 2221021102 is about 1304.7207266828.

Adding to 2221021102 its reverse (2011201222), we get a palindrome (4232222324).

The spelling of 2221021102 in words is "two billion, two hundred twenty-one million, twenty-one thousand, one hundred two".