212423302102 has 32 divisors (see below), whose sum is σ = 351398744064. Its totient is φ = 95505933600.

The previous prime is 212423302097. The next prime is 212423302121. The reversal of 212423302102 is 201203324212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809968 + ... + 1039660.

It is an arithmetic number, because the mean of its divisors is an integer number (10981210752).

Almost surely, 2^212423302102 is an apocalyptic number.

212423302102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212423302102 is a deficient number, since it is larger than the sum of its proper divisors (138975441962).

212423302102 is a wasteful number, since it uses less digits than its factorization.

212423302102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230164.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212423302102 its reverse (201203324212), we get a palindrome (413626626314).

The spelling of 212423302102 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred two thousand, one hundred two".