202021212201 has 16 divisors (see below), whose sum is σ = 283816876800. Its totient is φ = 127467094608.

The previous prime is 202021212193. The next prime is 202021212209. The reversal of 202021212201 is 102212120202.

It is an interprime number because it is at equal distance from previous prime (202021212193) and next prime (202021212209).

It is not a de Polignac number, because 202021212201 - 2³ = 202021212193 is a prime.

It is a super-2 number, since 2×202021212201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202021212209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680991 + ... + 1797156.

It is an arithmetic number, because the mean of its divisors is an integer number (17738554800).

Almost surely, 2^202021212201 is an apocalyptic number.

It is an amenable number.

202021212201 is a deficient number, since it is larger than the sum of its proper divisors (81795664599).

202021212201 is a wasteful number, since it uses less digits than its factorization.

202021212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479188.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202021212201 its reverse (102212120202), we get a palindrome (304233332403).

The spelling of 202021212201 in words is "two hundred two billion, twenty-one million, two hundred twelve thousand, two hundred one".