202120122010 has 16 divisors (see below), whose sum is σ = 363821359176. Its totient is φ = 80846906688.

The previous prime is 202120121989. The next prime is 202120122101. The reversal of 202120122010 is 10221021202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 198480051121 + 3640070889 = 445511^2 + 60333^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219432 + ... + 1375228.

Almost surely, 2^202120122010 is an apocalyptic number.

202120122010 is a deficient number, since it is larger than the sum of its proper divisors (161701237166).

202120122010 is a wasteful number, since it uses less digits than its factorization.

202120122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285537.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202120122010 its reverse (10221021202), we get a palindrome (212341143212).

The spelling of 202120122010 in words is "two hundred two billion, one hundred twenty million, one hundred twenty-two thousand, ten".