10212112121202 has 24 divisors (see below), whose sum is σ = 22345314645420. Its totient is φ = 3370334032800.

The previous prime is 10212112121129. The next prime is 10212112121221. The reversal of 10212112121202 is 20212121121201.

It can be written as a sum of positive squares in 2 ways, for example, as 10023739628841 + 188372492361 = 3166029^2 + 434019^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2808609877 + ... + 2808613512.

Almost surely, 2^{10212112121202} is an apocalyptic number.

10212112121202 is an abundant number, since it is smaller than the sum of its proper divisors (12133202524218).

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

10212112121202 is a wasteful number, since it uses less digits than its factorization.

10212112121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617223498 (or 5617223495 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10212112121202 its reverse (20212121121201), we get a palindrome (30424233242403).

It can be divided in two parts, 1021211 and 2121202, that added together give a palindrome (3142413).

The spelling of 10212112121202 in words is "ten trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, two hundred two".