102220202121 has 8 divisors (see below), whose sum is σ = 136295609184. Its totient is φ = 68145798240.

The previous prime is 102220202069. The next prime is 102220202171. The reversal of 102220202121 is 121202022201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102220202121 - 2⁶ = 102220202057 is a prime.

It is a super-3 number, since 3×102220202121³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102220202121.

It is not an unprimeable number, because it can be changed into a prime (102220202171) 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, 32766 + ... + 453336.

It is an arithmetic number, because the mean of its divisors is an integer number (17036951148).

Almost surely, 2^102220202121 is an apocalyptic number.

It is an amenable number.

102220202121 is a deficient number, since it is larger than the sum of its proper divisors (34075407063).

102220202121 is an equidigital number, since it uses as much as digits as its factorization.

102220202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501591.

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

Adding to 102220202121 its reverse (121202022201), we get a palindrome (223422224322).

The spelling of 102220202121 in words is "one hundred two billion, two hundred twenty million, two hundred two thousand, one hundred twenty-one".