210102120100 has 36 divisors (see below), whose sum is σ = 458308666368. Its totient is φ = 83600836000.

The previous prime is 210102120037. The next prime is 210102120121. The reversal of 210102120100 is 1021201012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5480956 + ... + 5519155.

It is an arithmetic number, because the mean of its divisors is an integer number (12730796288).

Almost surely, 2^210102120100 is an apocalyptic number.

210102120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210102120100 is an abundant number, since it is smaller than the sum of its proper divisors (248206546268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210102120100 is a wasteful number, since it uses less digits than its factorization.

210102120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000316 (or 11000309 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210102120100 its reverse (1021201012), we get a palindrome (211123321112).

The spelling of 210102120100 in words is "two hundred ten billion, one hundred two million, one hundred twenty thousand, one hundred".