212123112002102 has 64 divisors (see below), whose sum is σ = 379157700280320. Its totient is φ = 87080092678656.

The previous prime is 212123112002071. The next prime is 212123112002147. The reversal of 212123112002102 is 201200211321212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1366985723 + ... + 1367140889.

It is an arithmetic number, because the mean of its divisors is an integer number (5924339066880).

Almost surely, 2^{212123112002102} is an apocalyptic number.

212123112002102 is a deficient number, since it is larger than the sum of its proper divisors (167034588278218).

212123112002102 is a wasteful number, since it uses less digits than its factorization.

212123112002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181845.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212123112002102 its reverse (201200211321212), we get a palindrome (413323323323314).

The spelling of 212123112002102 in words is "two hundred twelve trillion, one hundred twenty-three billion, one hundred twelve million, two thousand, one hundred two".