102021101212 has 36 divisors (see below), whose sum is σ = 181076847840. Its totient is φ = 50288665152.

The previous prime is 102021101197. The next prime is 102021101239. The reversal of 102021101212 is 212101120201.

It is a junction number, because it is equal to n+sod(n) for n = 102021101192 and 102021101201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68607933 + ... + 68609419.

It is an arithmetic number, because the mean of its divisors is an integer number (5029912440).

Almost surely, 2^102021101212 is an apocalyptic number.

It is an amenable number.

102021101212 is a deficient number, since it is larger than the sum of its proper divisors (79055746628).

102021101212 is an equidigital number, since it uses as much as digits as its factorization.

102021101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102021101212 its reverse (212101120201), we get a palindrome (314122221413).

The spelling of 102021101212 in words is "one hundred two billion, twenty-one million, one hundred one thousand, two hundred twelve".