1212012221002 has 16 divisors (see below), whose sum is σ = 2011226428224. Its totient is φ = 543155284000.

The previous prime is 1212012220943. The next prime is 1212012221011. The reversal of 1212012221002 is 2001222102121.

It is a happy number.

It is a super-3 number, since 3×1212012221002³ (a number of 37 digits) contains 333 as substring.

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, 387966499 + ... + 387969622.

It is an arithmetic number, because the mean of its divisors is an integer number (125701651764).

Almost surely, 2^{1212012221002} is an apocalyptic number.

1212012221002 is a deficient number, since it is larger than the sum of its proper divisors (799214207222).

1212012221002 is a wasteful number, since it uses less digits than its factorization.

1212012221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775936205.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212012221002 its reverse (2001222102121), we get a palindrome (3213234323123).

The spelling of 1212012221002 in words is "one trillion, two hundred twelve billion, twelve million, two hundred twenty-one thousand, two".