102021110022212 has 6 divisors (see below), whose sum is σ = 178536942538878. Its totient is φ = 51010555011104.

The previous prime is 102021110022173. The next prime is 102021110022233. The reversal of 102021110022212 is 212220011120201.

It can be written as a sum of positive squares in only one way, i.e., 56400460480576 + 45620649541636 = 7510024^2 + 6754306^2 .

It is a super-2 number, since 2×102021110022212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752638752773 + ... + 12752638752780.

It is an arithmetic number, because the mean of its divisors is an integer number (29756157089813).

Almost surely, 2^{102021110022212} is an apocalyptic number.

It is an amenable number.

102021110022212 is a deficient number, since it is larger than the sum of its proper divisors (76515832516666).

102021110022212 is a wasteful number, since it uses less digits than its factorization.

102021110022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505277505557 (or 25505277505555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102021110022212 its reverse (212220011120201), we get a palindrome (314241121142413).

The spelling of 102021110022212 in words is "one hundred two trillion, twenty-one billion, one hundred ten million, twenty-two thousand, two hundred twelve".