1212210121036 has 24 divisors (see below), whose sum is σ = 2246329486800. Its totient is φ = 570407265792.

The previous prime is 1212210121009. The next prime is 1212210121037. The reversal of 1212210121036 is 6301210122121.

It is a super-2 number, since 2×1212210121036² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212210120998 and 1212210121016.

It is not an unprimeable number, because it can be changed into a prime (1212210121037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189040 + ... + 1568488.

It is an arithmetic number, because the mean of its divisors is an integer number (93597061950).

Almost surely, 2^{1212210121036} is an apocalyptic number.

It is an amenable number.

1212210121036 is a deficient number, since it is larger than the sum of its proper divisors (1034119365764).

1212210121036 is a wasteful number, since it uses less digits than its factorization.

1212210121036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392393 (or 1392391 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1212210121036 its reverse (6301210122121), we get a palindrome (7513420243157).

The spelling of 1212210121036 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-one thousand, thirty-six".