2221111220102 has 16 divisors (see below), whose sum is σ = 3375212861952. Its totient is φ = 1096116864840.

The previous prime is 2221111220093. The next prime is 2221111220161. The reversal of 2221111220102 is 2010221111222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19091498 + ... + 19207485.

It is an arithmetic number, because the mean of its divisors is an integer number (210950803872).

Almost surely, 2^{2221111220102} is an apocalyptic number.

2221111220102 is a deficient number, since it is larger than the sum of its proper divisors (1154101641850).

2221111220102 is a wasteful number, since it uses less digits than its factorization.

2221111220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38299363.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221111220102 its reverse (2010221111222), we get a palindrome (4231332331324).

The spelling of 2221111220102 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred two".