10101321212 has 12 divisors (see below), whose sum is σ = 17725481760. Its totient is φ = 5036897856.

The previous prime is 10101321211. The next prime is 10101321233. The reversal of 10101321212 is 21212310101.

It is a super-2 number, since 2×10101321212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101321211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3439037 + ... + 3441972.

It is an arithmetic number, because the mean of its divisors is an integer number (1477123480).

Almost surely, 2^10101321212 is an apocalyptic number.

It is an amenable number.

10101321212 is a deficient number, since it is larger than the sum of its proper divisors (7624160548).

10101321212 is a wasteful number, since it uses less digits than its factorization.

10101321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881380 (or 6881378 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10101321212 its reverse (21212310101), we get a palindrome (31313631313).

The spelling of 10101321212 in words is "ten billion, one hundred one million, three hundred twenty-one thousand, two hundred twelve".