101222010022121 has 4 divisors (see below), whose sum is σ = 101567477633412. Its totient is φ = 100876542410832.

The previous prime is 101222010022117. The next prime is 101222010022127. The reversal of 101222010022121 is 121220010222101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90712671462400 + 10509338559721 = 9524320^2 + 3241811^2 .

It is a cyclic number.

It is not a de Polignac number, because 101222010022121 - 2² = 101222010022117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101222010022121.

It is not an unprimeable number, because it can be changed into a prime (101222010022127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172733805206 + ... + 172733805791.

It is an arithmetic number, because the mean of its divisors is an integer number (25391869408353).

Almost surely, 2^{101222010022121} is an apocalyptic number.

It is an amenable number.

101222010022121 is a deficient number, since it is larger than the sum of its proper divisors (345467611291).

101222010022121 is an equidigital number, since it uses as much as digits as its factorization.

101222010022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345467611290.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101222010022121 its reverse (121220010222101), we get a palindrome (222442020244222).

The spelling of 101222010022121 in words is "one hundred one trillion, two hundred twenty-two billion, ten million, twenty-two thousand, one hundred twenty-one".