220102121210 has 16 divisors (see below), whose sum is σ = 397827738792. Its totient is φ = 87675532800.

The previous prime is 220102121209. The next prime is 220102121219. The reversal of 220102121210 is 12121201022.

It can be written as a sum of positive squares in 4 ways, for example, as 153337245889 + 66764875321 = 391583^2 + 258389^2 .

It is a super-2 number, since 2×220102121210² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220102121219) 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, 45661931 + ... + 45666750.

Almost surely, 2^220102121210 is an apocalyptic number.

220102121210 is a deficient number, since it is larger than the sum of its proper divisors (177725617582).

220102121210 is a wasteful number, since it uses less digits than its factorization.

220102121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91328929.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220102121210 its reverse (12121201022), we get a palindrome (232223322232).

The spelling of 220102121210 in words is "two hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred ten".