101000220012121 has 4 divisors (see below), whose sum is σ = 101000373612544. Its totient is φ = 101000066411700.

The previous prime is 101000220012113. The next prime is 101000220012127. The reversal of 101000220012121 is 121210022000101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101000220012121 - 2³ = 101000220012113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101000220012127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75809625 + ... + 77130406.

It is an arithmetic number, because the mean of its divisors is an integer number (25250093403136).

Almost surely, 2^{101000220012121} is an apocalyptic number.

It is an amenable number.

101000220012121 is a deficient number, since it is larger than the sum of its proper divisors (153600423).

101000220012121 is an equidigital number, since it uses as much as digits as its factorization.

101000220012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153600422.

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

Adding to 101000220012121 its reverse (121210022000101), we get a palindrome (222210242012222).

The spelling of 101000220012121 in words is "one hundred one trillion, two hundred twenty million, twelve thousand, one hundred twenty-one".