202100122010 has 8 divisors (see below), whose sum is σ = 363780219636. Its totient is φ = 80840048800.

The previous prime is 202100122001. The next prime is 202100122039. The reversal of 202100122010 is 10221001202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 185701526761 + 16398595249 = 430931^2 + 128057^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 202100121982 and 202100122000.

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, 10105006091 + ... + 10105006110.

Almost surely, 2^202100122010 is an apocalyptic number.

202100122010 is a deficient number, since it is larger than the sum of its proper divisors (161680097626).

202100122010 is a wasteful number, since it uses less digits than its factorization.

202100122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210012208.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202100122010 its reverse (10221001202), we get a palindrome (212321123212).

The spelling of 202100122010 in words is "two hundred two billion, one hundred million, one hundred twenty-two thousand, ten".