101213012 has 12 divisors (see below), whose sum is σ = 178778880. Its totient is φ = 50133336.

The previous prime is 101213003. The next prime is 101213017. The reversal of 101213012 is 210312101.

101213012 is nontrivially palindromic in base 9.

It is a super-2 number, since 2×101213012² = 20488147596224288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101212984 and 101213002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213017) 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, 117812 + ... + 118667.

It is an arithmetic number, because the mean of its divisors is an integer number (14898240).

Almost surely, 2^101213012 is an apocalyptic number.

It is an amenable number.

101213012 is a deficient number, since it is larger than the sum of its proper divisors (77565868).

101213012 is a wasteful number, since it uses less digits than its factorization.

101213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236590 (or 236588 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101213012 is about 10060.4677823648. The cubic root of 101213012 is about 466.0281132689.

Adding to 101213012 its reverse (210312101), we get a palindrome (311525113).

The spelling of 101213012 in words is "one hundred one million, two hundred thirteen thousand, twelve".