102200210010121 has 4 divisors (see below), whose sum is σ = 102352067677972. Its totient is φ = 102048352342272.

The previous prime is 102200210010053. The next prime is 102200210010163. The reversal of 102200210010121 is 121010012002201.

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 26427711542521 + 75772498467600 = 5140789^2 + 8704740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102200210010121 is a prime.

It is a super-2 number, since 2×102200210010121² (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 (102200210050121) 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, 75928832916 + ... + 75928834261.

It is an arithmetic number, because the mean of its divisors is an integer number (25588016919493).

Almost surely, 2^{102200210010121} is an apocalyptic number.

It is an amenable number.

102200210010121 is a deficient number, since it is larger than the sum of its proper divisors (151857667851).

102200210010121 is an equidigital number, since it uses as much as digits as its factorization.

102200210010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151857667850.

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

Adding to 102200210010121 its reverse (121010012002201), we get a palindrome (223210222012322).

The spelling of 102200210010121 in words is "one hundred two trillion, two hundred billion, two hundred ten million, ten thousand, one hundred twenty-one".