11001212120002 has 16 divisors (see below), whose sum is σ = 18816552857592. Its totient is φ = 4778807074560.

The previous prime is 11001212119991. The next prime is 11001212120023. The reversal of 11001212120002 is 20002121210011.

It can be written as a sum of positive squares in 4 ways, for example, as 8188416894681 + 2812795225321 = 2861541^2 + 1677139^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12444809649 + ... + 12444810532.

Almost surely, 2^{11001212120002} is an apocalyptic number.

11001212120002 is a deficient number, since it is larger than the sum of its proper divisors (7815340737590).

11001212120002 is a wasteful number, since it uses less digits than its factorization.

11001212120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24889620213.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11001212120002 its reverse (20002121210011), we get a palindrome (31003333330013).

Subtracting 11001212120002 from its reverse (20002121210011), we obtain a palindrome (9000909090009).

The spelling of 11001212120002 in words is "eleven trillion, one billion, two hundred twelve million, one hundred twenty thousand, two".