201021220202 has 16 divisors (see below), whose sum is σ = 331961652000. Its totient is φ = 90534993840.

The previous prime is 201021220129. The next prime is 201021220207. The reversal of 201021220202 is 202022120102.

It is not an unprimeable number, because it can be changed into a prime (201021220207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41911952 + ... + 41916747.

It is an arithmetic number, because the mean of its divisors is an integer number (20747603250).

Almost surely, 2^201021220202 is an apocalyptic number.

201021220202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201021220202 is a deficient number, since it is larger than the sum of its proper divisors (130940431798).

201021220202 is a wasteful number, since it uses less digits than its factorization.

201021220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83828821.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201021220202 its reverse (202022120102), we get a palindrome (403043340304).

It can be divided in two parts, 2010 and 21220202, that added together give a palindrome (21222212).

The spelling of 201021220202 in words is "two hundred one billion, twenty-one million, two hundred twenty thousand, two hundred two".