2121222211102 has 16 divisors (see below), whose sum is σ = 3185438514192. Its totient is φ = 1059409713600.

The previous prime is 2121222211093. The next prime is 2121222211139. The reversal of 2121222211102 is 2011122221212.

It is a super-3 number, since 3×2121222211102³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2121222211102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12936393 + ... + 13099339.

It is an arithmetic number, because the mean of its divisors is an integer number (199089907137).

Almost surely, 2^{2121222211102} is an apocalyptic number.

2121222211102 is a deficient number, since it is larger than the sum of its proper divisors (1064216303090).

2121222211102 is a wasteful number, since it uses less digits than its factorization.

2121222211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170283.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2121222211102 its reverse (2011122221212), we get a palindrome (4132344432314).

The spelling of 2121222211102 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred two".