101011321212 has 24 divisors (see below), whose sum is σ = 235753456512. Its totient is φ = 33661815600.

The previous prime is 101011321211. The next prime is 101011321231. The reversal of 101011321212 is 212123110101.

It is a super-2 number, since 2×101011321212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101011321191 and 101011321200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011321211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029214 + ... + 1123077.

It is an arithmetic number, because the mean of its divisors is an integer number (9823060688).

Almost surely, 2^101011321212 is an apocalyptic number.

101011321212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101011321212 is an abundant number, since it is smaller than the sum of its proper divisors (134742135300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101011321212 is a wasteful number, since it uses less digits than its factorization.

101011321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156209 (or 2156207 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101011321212 its reverse (212123110101), we get a palindrome (313134431313).

The spelling of 101011321212 in words is "one hundred one billion, eleven million, three hundred twenty-one thousand, two hundred twelve".