202021102122010 has 8 divisors (see below), whose sum is σ = 363637983819636. Its totient is φ = 80808440848800.

The previous prime is 202021102121987. The next prime is 202021102122053. The reversal of 202021102122010 is 10221201120202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 201380876502129 + 640225619881 = 14190873^2 + 800141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10101055106091 + ... + 10101055106110.

Almost surely, 2^{202021102122010} is an apocalyptic number.

202021102122010 is a deficient number, since it is larger than the sum of its proper divisors (161616881697626).

202021102122010 is a wasteful number, since it uses less digits than its factorization.

202021102122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20202110212208.

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

Adding to 202021102122010 its reverse (10221201120202), we get a palindrome (212242303242212).

The spelling of 202021102122010 in words is "two hundred two trillion, twenty-one billion, one hundred two million, one hundred twenty-two thousand, ten".