1212869036 has 6 divisors (see below), whose sum is σ = 2122520820. Its totient is φ = 606434516.

The previous prime is 1212869033. The next prime is 1212869057. The reversal of 1212869036 is 6309682121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212869033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151608626 + ... + 151608633.

It is an arithmetic number, because the mean of its divisors is an integer number (353753470).

Almost surely, 2^1212869036 is an apocalyptic number.

It is an amenable number.

1212869036 is a deficient number, since it is larger than the sum of its proper divisors (909651784).

1212869036 is a wasteful number, since it uses less digits than its factorization.

1212869036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303217263 (or 303217261 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1212869036 is about 34826.2693379581. The cubic root of 1212869036 is about 1066.4437899356.

The spelling of 1212869036 in words is "one billion, two hundred twelve million, eight hundred sixty-nine thousand, thirty-six".