202021020201 has 128 divisors (see below), whose sum is σ = 373925486592. Its totient is φ = 93623040000.

The previous prime is 202021020199. The next prime is 202021020211. The reversal of 202021020201 is 102020120202.

It is not a de Polignac number, because 202021020201 - 2¹ = 202021020199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202021020211) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16771741 + ... + 16783781.

It is an arithmetic number, because the mean of its divisors is an integer number (2921292864).

Almost surely, 2^202021020201 is an apocalyptic number.

202021020201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202021020201 is a deficient number, since it is larger than the sum of its proper divisors (171904466391).

202021020201 is a wasteful number, since it uses less digits than its factorization.

202021020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12263.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202021020201 its reverse (102020120202), we get a palindrome (304041140403).

It can be divided in two parts, 20202 and 1020201, that added together give a triangular number (1040403 = T₁₄₄₂).

The spelling of 202021020201 in words is "two hundred two billion, twenty-one million, twenty thousand, two hundred one".