102212021122210 has 32 divisors (see below), whose sum is σ = 191003148716400. Its totient is φ = 39334507054080.

The previous prime is 102212021122201. The next prime is 102212021122217. The reversal of 102212021122210 is 12221120212201.

It can be written as a sum of positive squares in 8 ways, for example, as 39883254071761 + 62328767050449 = 6315319^2 + 7894857^2 .

It is not an unprimeable number, because it can be changed into a prime (102212021122217) 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, 627063075 + ... + 627226054.

Almost surely, 2^{102212021122210} is an apocalyptic number.

102212021122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102212021122210 is a deficient number, since it is larger than the sum of its proper divisors (88791127594190).

102212021122210 is a wasteful number, since it uses less digits than its factorization.

102212021122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254289446.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102212021122210 its reverse (12221120212201), we get a palindrome (114433141334411).

The spelling of 102212021122210 in words is "one hundred two trillion, two hundred twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred ten".