10212221010202 has 4 divisors (see below), whose sum is σ = 15318331515306. Its totient is φ = 5106110505100.

The previous prime is 10212221010127. The next prime is 10212221010227. The reversal of 10212221010202 is 20201012221201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10108717895241 + 103503114961 = 3179421^2 + 321719^2 .

It is a super-2 number, since 2×10212221010202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553055252549 + ... + 2553055252552.

Almost surely, 2^{10212221010202} is an apocalyptic number.

10212221010202 is a deficient number, since it is larger than the sum of its proper divisors (5106110505104).

10212221010202 is an equidigital number, since it uses as much as digits as its factorization.

10212221010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106110505103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10212221010202 its reverse (20201012221201), we get a palindrome (30413233231403).

The spelling of 10212221010202 in words is "ten trillion, two hundred twelve billion, two hundred twenty-one million, ten thousand, two hundred two".