2121211102222 has 16 divisors (see below), whose sum is σ = 3206183295744. Its totient is φ = 1052483731000.

The previous prime is 2121211102177. The next prime is 2121211102243. The reversal of 2121211102222 is 2222011121212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121211102222.

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, 15260697 + ... + 15399067.

It is an arithmetic number, because the mean of its divisors is an integer number (200386455984).

Almost surely, 2^{2121211102222} is an apocalyptic number.

2121211102222 is a deficient number, since it is larger than the sum of its proper divisors (1084972193522).

2121211102222 is a wasteful number, since it uses less digits than its factorization.

2121211102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197015.

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

Adding to 2121211102222 its reverse (2222011121212), we get a palindrome (4343222223434).

The spelling of 2121211102222 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, two hundred twenty-two".