1212112002 has 32 divisors (see below), whose sum is σ = 2602003392. Its totient is φ = 375058944.

The previous prime is 1212111977. The next prime is 1212112037. The reversal of 1212112002 is 2002112121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73948 + ... + 88839.

It is an arithmetic number, because the mean of its divisors is an integer number (81312606).

Almost surely, 2^1212112002 is an apocalyptic number.

1212112002 is an abundant number, since it is smaller than the sum of its proper divisors (1389891390).

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

1212112002 is a wasteful number, since it uses less digits than its factorization.

1212112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162882.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1212112002 is about 34815.3989205926. The cubic root of 1212112002 is about 1066.2218637388.

Adding to 1212112002 its reverse (2002112121), we get a palindrome (3214224123).

The spelling of 1212112002 in words is "one billion, two hundred twelve million, one hundred twelve thousand, two".