100121021122 has 4 divisors (see below), whose sum is σ = 150181531686. Its totient is φ = 50060510560.

The previous prime is 100121021111. The next prime is 100121021131. The reversal of 100121021122 is 221120121001.

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., 96727842121 + 3393179001 = 311011^2 + 58251^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25030255279 + ... + 25030255282.

Almost surely, 2^100121021122 is an apocalyptic number.

100121021122 is a deficient number, since it is larger than the sum of its proper divisors (50060510564).

100121021122 is an equidigital number, since it uses as much as digits as its factorization.

100121021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50060510563.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100121021122 its reverse (221120121001), we get a palindrome (321241142123).

The spelling of 100121021122 in words is "one hundred billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".