2121101020122 has 64 divisors (see below), whose sum is σ = 4928264592384. Its totient is φ = 596101317120.

The previous prime is 2121101020121. The next prime is 2121101020141. The reversal of 2121101020122 is 2210201011212.

It is not an unprimeable number, because it can be changed into a prime (2121101020121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933004 + ... + 2261127.

It is an arithmetic number, because the mean of its divisors is an integer number (77004134256).

Almost surely, 2^{2121101020122} is an apocalyptic number.

2121101020122 is an abundant number, since it is smaller than the sum of its proper divisors (2807163572262).

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

2121101020122 is a wasteful number, since it uses less digits than its factorization.

2121101020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194403.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121101020122 its reverse (2210201011212), we get a palindrome (4331302031334).

The spelling of 2121101020122 in words is "two trillion, one hundred twenty-one billion, one hundred one million, twenty thousand, one hundred twenty-two".