220121002102 has 8 divisors (see below), whose sum is σ = 330305686200. Its totient is φ = 110019106704.

The previous prime is 220121002051. The next prime is 220121002109. The reversal of 220121002102 is 201200121022.

It is a happy number.

220121002102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×220121002102³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121002109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20690527 + ... + 20701162.

It is an arithmetic number, because the mean of its divisors is an integer number (41288210775).

Almost surely, 2^220121002102 is an apocalyptic number.

220121002102 is a deficient number, since it is larger than the sum of its proper divisors (110184684098).

220121002102 is a wasteful number, since it uses less digits than its factorization.

220121002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41394350.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220121002102 its reverse (201200121022), we get a palindrome (421321123124).

The spelling of 220121002102 in words is "two hundred twenty billion, one hundred twenty-one million, two thousand, one hundred two".