2221220102 has 8 divisors (see below), whose sum is σ = 3527820216. Its totient is φ = 1045280032.

The previous prime is 2221220069. The next prime is 2221220107. The reversal of 2221220102 is 2010221222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221220107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32664968 + ... + 32665035.

It is an arithmetic number, because the mean of its divisors is an integer number (440977527).

Almost surely, 2^2221220102 is an apocalyptic number.

2221220102 is a deficient number, since it is larger than the sum of its proper divisors (1306600114).

2221220102 is a wasteful number, since it uses less digits than its factorization.

2221220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65330022.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2221220102 is about 47129.8217904545. The cubic root of 2221220102 is about 1304.7596924946.

Adding to 2221220102 its reverse (2010221222), we get a palindrome (4231441324).

The spelling of 2221220102 in words is "two billion, two hundred twenty-one million, two hundred twenty thousand, one hundred two".