101202110121001 has 4 divisors (see below), whose sum is σ = 101202176249604. Its totient is φ = 101202043992400.

The previous prime is 101202110120999. The next prime is 101202110121019. The reversal of 101202110121001 is 100121011202101.

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 2 ways, for example, as 92115864485401 + 9086245635600 = 9597701^2 + 3014340^2 .

It is a cyclic number.

It is not a de Polignac number, because 101202110121001 - 2¹ = 101202110120999 is a prime.

It is a super-2 number, since 2×101202110121001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101202110121031) 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, 30712990 + ... + 33848071.

It is an arithmetic number, because the mean of its divisors is an integer number (25300544062401).

Almost surely, 2^{101202110121001} is an apocalyptic number.

It is an amenable number.

101202110121001 is a deficient number, since it is larger than the sum of its proper divisors (66128603).

101202110121001 is an equidigital number, since it uses as much as digits as its factorization.

101202110121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66128602.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101202110121001 its reverse (100121011202101), we get a palindrome (201323121323102).

The spelling of 101202110121001 in words is "one hundred one trillion, two hundred two billion, one hundred ten million, one hundred twenty-one thousand, one".