2145211401122 has 16 divisors (see below), whose sum is σ = 3221986151232. Its totient is φ = 1071216228720.

The previous prime is 2145211401103. The next prime is 2145211401127. The reversal of 2145211401122 is 2211041125412.

It is a junction number, because it is equal to n+sod(n) for n = 2145211401091 and 2145211401100.

It is not an unprimeable number, because it can be changed into a prime (2145211401127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23675288 + ... + 23765724.

It is an arithmetic number, because the mean of its divisors is an integer number (201374134452).

Almost surely, 2^{2145211401122} is an apocalyptic number.

2145211401122 is a deficient number, since it is larger than the sum of its proper divisors (1076774750110).

2145211401122 is a wasteful number, since it uses less digits than its factorization.

2145211401122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105673.

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 2145211401122 its reverse (2211041125412), we get a palindrome (4356252526534).

The spelling of 2145211401122 in words is "two trillion, one hundred forty-five billion, two hundred eleven million, four hundred one thousand, one hundred twenty-two".