2102120012222 has 16 divisors (see below), whose sum is σ = 3338689158432. Its totient is φ = 989224661760.

The previous prime is 2102120012221. The next prime is 2102120012389. The reversal of 2102120012222 is 2222100212012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2102120012222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102120012221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6183722 + ... + 6514802.

It is an arithmetic number, because the mean of its divisors is an integer number (208668072402).

Almost surely, 2^{2102120012222} is an apocalyptic number.

2102120012222 is a deficient number, since it is larger than the sum of its proper divisors (1236569146210).

2102120012222 is a wasteful number, since it uses less digits than its factorization.

2102120012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517843.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2102120012222 its reverse (2222100212012), we get a palindrome (4324220224234).

The spelling of 2102120012222 in words is "two trillion, one hundred two billion, one hundred twenty million, twelve thousand, two hundred twenty-two".