102121021210203 has 24 divisors (see below), whose sum is σ = 152601999391296. Its totient is φ = 65762550864000.

The previous prime is 102121021210183. The next prime is 102121021210237. The reversal of 102121021210203 is 302012120121201.

102121021210203 is a `hidden beast` number, since 1 + 0 + 21 + 210 + 21 + 210 + 203 = 666.

It is not a de Polignac number, because 102121021210203 - 2¹⁷ = 102121021079131 is a prime.

It is a super-2 number, since 2×102121021210203² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102121021210303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1370015875 + ... + 1370090412.

It is an arithmetic number, because the mean of its divisors is an integer number (6358416641304).

Almost surely, 2^{102121021210203} is an apocalyptic number.

102121021210203 is a deficient number, since it is larger than the sum of its proper divisors (50480978181093).

102121021210203 is a wasteful number, since it uses less digits than its factorization.

102121021210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740106435 (or 2740106432 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 102121021210203 its reverse (302012120121201), we get a palindrome (404133141331404).

The spelling of 102121021210203 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-one million, two hundred ten thousand, two hundred three".