2021100300122 has 4 divisors (see below), whose sum is σ = 3031650450186. Its totient is φ = 1010550150060.

The previous prime is 2021100300101. The next prime is 2021100300157. The reversal of 2021100300122 is 2210030011202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1082117982001 + 938982318121 = 1040249^2 + 969011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021100300097 and 2021100300106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505275075029 + ... + 505275075032.

Almost surely, 2^{2021100300122} is an apocalyptic number.

2021100300122 is a deficient number, since it is larger than the sum of its proper divisors (1010550150064).

2021100300122 is a wasteful number, since it uses less digits than its factorization.

2021100300122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010550150063.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2021100300122 its reverse (2210030011202), we get a palindrome (4231130311324).

The spelling of 2021100300122 in words is "two trillion, twenty-one billion, one hundred million, three hundred thousand, one hundred twenty-two".