2122121020122 has 48 divisors (see below), whose sum is σ = 4673646563040. Its totient is φ = 695799235296.

The previous prime is 2122121020099. The next prime is 2122121020139. The reversal of 2122121020122 is 2210201212212.

It is a happy number.

2122121020122 is a `hidden beast` number, since 212 + 21 + 210 + 201 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2122121020095 and 2122121020104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2759248 + ... + 3443499.

It is an arithmetic number, because the mean of its divisors is an integer number (97367636730).

Almost surely, 2^{2122121020122} is an apocalyptic number.

2122121020122 is an abundant number, since it is smaller than the sum of its proper divisors (2551525542918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122121020122 is a wasteful number, since it uses less digits than its factorization.

2122121020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203067 (or 6203064 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2122121020122 its reverse (2210201212212), we get a palindrome (4332322232334).

The spelling of 2122121020122 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty thousand, one hundred twenty-two".