2102122021228 has 6 divisors (see below), whose sum is σ = 3678713537156. Its totient is φ = 1051061010612.

The previous prime is 2102122021199. The next prime is 2102122021229. The reversal of 2102122021228 is 8221202212012.

It is not an unprimeable number, because it can be changed into a prime (2102122021229) 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 as a sum of consecutive naturals, namely, 262765252650 + ... + 262765252657.

Almost surely, 2^{2102122021228} is an apocalyptic number.

It is an amenable number.

2102122021228 is a deficient number, since it is larger than the sum of its proper divisors (1576591515928).

2102122021228 is a wasteful number, since it uses less digits than its factorization.

2102122021228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525530505311 (or 525530505309 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The spelling of 2102122021228 in words is "two trillion, one hundred two billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-eight".