2100221001122 has 4 divisors (see below), whose sum is σ = 3150331501686. Its totient is φ = 1050110500560.

The previous prime is 2100221001121. The next prime is 2100221001181. The reversal of 2100221001122 is 2211001220012.

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., 2098033474681 + 2187526441 = 1448459^2 + 46771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100221001097 and 2100221001106.

It is not an unprimeable number, because it can be changed into a prime (2100221001121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525055250279 + ... + 525055250282.

Almost surely, 2^{2100221001122} is an apocalyptic number.

2100221001122 is a deficient number, since it is larger than the sum of its proper divisors (1050110500564).

2100221001122 is a wasteful number, since it uses less digits than its factorization.

2100221001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050110500563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100221001122 its reverse (2211001220012), we get a palindrome (4311222221134).

The spelling of 2100221001122 in words is "two trillion, one hundred billion, two hundred twenty-one million, one thousand, one hundred twenty-two".