102210121100121 has 32 divisors (see below), whose sum is σ = 144622344240000. Its totient is φ = 63987092520960.

The previous prime is 102210121100083. The next prime is 102210121100209. The reversal of 102210121100121 is 121001121012201.

It is a happy number.

It is not a de Polignac number, because 102210121100121 - 2⁹ = 102210121099609 is a prime.

It is a super-3 number, since 3×102210121100121³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102210121100121.

It is not an unprimeable number, because it can be changed into a prime (102210121110121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1524375805 + ... + 1524442853.

It is an arithmetic number, because the mean of its divisors is an integer number (4519448257500).

Almost surely, 2^{102210121100121} is an apocalyptic number.

It is an amenable number.

102210121100121 is a deficient number, since it is larger than the sum of its proper divisors (42412223139879).

102210121100121 is a wasteful number, since it uses less digits than its factorization.

102210121100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134089.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102210121100121 its reverse (121001121012201), we get a palindrome (223211242112322).

The spelling of 102210121100121 in words is "one hundred two trillion, two hundred ten billion, one hundred twenty-one million, one hundred thousand, one hundred twenty-one".