2221222121102 has 8 divisors (see below), whose sum is σ = 3331860319200. Its totient is φ = 1110602014704.

The previous prime is 2221222121101. The next prime is 2221222121117. The reversal of 2221222121102 is 2011212221222.

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

It is a super-2 number, since 2×2221222121102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221222121101) 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, 4211702 + ... + 4709657.

It is an arithmetic number, because the mean of its divisors is an integer number (416482539900).

Almost surely, 2^{2221222121102} is an apocalyptic number.

2221222121102 is a deficient number, since it is larger than the sum of its proper divisors (1110638198098).

2221222121102 is a wasteful number, since it uses less digits than its factorization.

2221222121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045850.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2221222121102 its reverse (2011212221222), we get a palindrome (4232434342324).

The spelling of 2221222121102 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".