1212101012 has 24 divisors (see below), whose sum is σ = 2214748032. Its totient is φ = 579348000.

The previous prime is 1212100993. The next prime is 1212101017. The reversal of 1212101012 is 2101012121.

1212101012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1212100984 and 1212101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212101017) 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, 209762 + ... + 215462.

It is an arithmetic number, because the mean of its divisors is an integer number (92281168).

Almost surely, 2^1212101012 is an apocalyptic number.

It is an amenable number.

1212101012 is a deficient number, since it is larger than the sum of its proper divisors (1002647020).

1212101012 is a wasteful number, since it uses less digits than its factorization.

1212101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039 (or 8037 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1212101012 is about 34815.2410877765. The cubic root of 1212101012 is about 1066.2186413155.

Adding to 1212101012 its reverse (2101012121), we get a palindrome (3313113133).

It can be divided in two parts, 121 and 2101012, that multiplied together give a palindrome (254222452).

The spelling of 1212101012 in words is "one billion, two hundred twelve million, one hundred one thousand, twelve".