102021212010195 has 64 divisors (see below), whose sum is σ = 182319011804160. Its totient is φ = 54126948059136.

The previous prime is 102021212010163. The next prime is 102021212010227. The reversal of 102021212010195 is 591010212120201.

It is an interprime number because it is at equal distance from previous prime (102021212010163) and next prime (102021212010227).

It is not a de Polignac number, because 102021212010195 - 2⁵ = 102021212010163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 677432874 + ... + 677583456.

It is an arithmetic number, because the mean of its divisors is an integer number (2848734559440).

Almost surely, 2^{102021212010195} is an apocalyptic number.

102021212010195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102021212010195 is a deficient number, since it is larger than the sum of its proper divisors (80297799793965).

102021212010195 is a wasteful number, since it uses less digits than its factorization.

102021212010195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176793 (or 176787 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

Adding to 102021212010195 its reverse (591010212120201), we get a palindrome (693031424130396).

The spelling of 102021212010195 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, ten thousand, one hundred ninety-five".