1012212102 has 32 divisors (see below), whose sum is σ = 2230343424. Its totient is φ = 303692000.

The previous prime is 1012212067. The next prime is 1012212109. The reversal of 1012212102 is 2012122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012212109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69258 + ... + 82589.

It is an arithmetic number, because the mean of its divisors is an integer number (69698232).

Almost surely, 2^1012212102 is an apocalyptic number.

1012212102 is an abundant number, since it is smaller than the sum of its proper divisors (1218131322).

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

1012212102 is a wasteful number, since it uses less digits than its factorization.

1012212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151964.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1012212102 is about 31815.2809511404. The cubic root of 1012212102 is about 1004.0542415789.

Adding to 1012212102 its reverse (2012122101), we get a palindrome (3024334203).

Subtracting 1012212102 from its reverse (2012122101), we obtain a palindrome (999909999).

The spelling of 1012212102 in words is "one billion, twelve million, two hundred twelve thousand, one hundred two".