10202121212 has 24 divisors (see below), whose sum is σ = 18799994640. Its totient is φ = 4830883200.

The previous prime is 10202121203. The next prime is 10202121221. The reversal of 10202121212 is 21212120201.

It is an interprime number because it is at equal distance from previous prime (10202121203) and next prime (10202121221).

It is a super-4 number, since 4×10202121212⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208712 + ... + 252912.

It is an arithmetic number, because the mean of its divisors is an integer number (783333110).

Almost surely, 2^10202121212 is an apocalyptic number.

It is an amenable number.

10202121212 is a deficient number, since it is larger than the sum of its proper divisors (8597873428).

10202121212 is a wasteful number, since it uses less digits than its factorization.

10202121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47261 (or 47259 counting only the distinct ones).

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

Adding to 10202121212 its reverse (21212120201), we get a palindrome (31414241413).

The spelling of 10202121212 in words is "ten billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".