102101120120210 has 16 divisors (see below), whose sum is σ = 183924593443800. Its totient is φ = 40808764219776.

The previous prime is 102101120120173. The next prime is 102101120120213. The reversal of 102101120120210 is 12021021101201.

It can be written as a sum of positive squares in 4 ways, for example, as 102082914824881 + 18205295329 = 10103609^2 + 134927^2 .

It is not an unprimeable number, because it can be changed into a prime (102101120120213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3960465005 + ... + 3960490784.

Almost surely, 2^{102101120120210} is an apocalyptic number.

102101120120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102101120120210 is a deficient number, since it is larger than the sum of its proper divisors (81823473323590).

102101120120210 is a wasteful number, since it uses less digits than its factorization.

102101120120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920957085.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102101120120210 its reverse (12021021101201), we get a palindrome (114122141221411).

The spelling of 102101120120210 in words is "one hundred two trillion, one hundred one billion, one hundred twenty million, one hundred twenty thousand, two hundred ten".