202020121012010 has 96 divisors (see below), whose sum is σ = 423271384105680. Its totient is φ = 69220498572288.

The previous prime is 202020121011937. The next prime is 202020121012037. The reversal of 202020121012010 is 10210121020202.

It can be written as a sum of positive squares in 8 ways, for example, as 175883906467129 + 26136214544881 = 13262123^2 + 5112359^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10372230392 + ... + 10372249868.

Almost surely, 2^{202020121012010} is an apocalyptic number.

202020121012010 is an abundant number, since it is smaller than the sum of its proper divisors (221251263093670).

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

202020121012010 is a wasteful number, since it uses less digits than its factorization.

202020121012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31720 (or 31713 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202020121012010 its reverse (10210121020202), we get a palindrome (212230242032212).

The spelling of 202020121012010 in words is "two hundred two trillion, twenty billion, one hundred twenty-one million, twelve thousand, ten".