1212111112002 has 32 divisors (see below), whose sum is σ = 2770900841472. Its totient is φ = 346272315984.

The previous prime is 1212111111983. The next prime is 1212111112021. The reversal of 1212111112002 is 2002111112121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212111111983) and next prime (1212111112021).

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, 1554328 + ... + 2200035.

It is an arithmetic number, because the mean of its divisors is an integer number (86590651296).

Almost surely, 2^{1212111112002} is an apocalyptic number.

1212111112002 is an abundant number, since it is smaller than the sum of its proper divisors (1558789729470).

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

1212111112002 is a wasteful number, since it uses less digits than its factorization.

1212111112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762062.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1212111112002 its reverse (2002111112121), we get a palindrome (3214222224123).

The spelling of 1212111112002 in words is "one trillion, two hundred twelve billion, one hundred eleven million, one hundred twelve thousand, two".