1112122221002 has 48 divisors (see below), whose sum is σ = 1812334095000. Its totient is φ = 511596214272.

The previous prime is 1112122220983. The next prime is 1112122221053. The reversal of 1112122221002 is 2001222212111.

It can be written as a sum of positive squares in 12 ways, for example, as 3290054881 + 1108832166121 = 57359^2 + 1053011^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274663874 + ... + 274667922.

Almost surely, 2^{1112122221002} is an apocalyptic number.

1112122221002 is a deficient number, since it is larger than the sum of its proper divisors (700211873998).

1112122221002 is a wasteful number, since it uses less digits than its factorization.

1112122221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555 (or 6542 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1112122221002 its reverse (2001222212111), we get a palindrome (3113344433113).

The spelling of 1112122221002 in words is "one trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, two".