1222122212002 has 4 divisors (see below), whose sum is σ = 1833183318006. Its totient is φ = 611061106000.

The previous prime is 1222122211993. The next prime is 1222122212041. The reversal of 1222122212002 is 2002122212221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 849547480681 + 372574731321 = 921709^2 + 610389^2 .

It is a super-2 number, since 2×1222122212002² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305530552999 + ... + 305530553002.

Almost surely, 2^{1222122212002} is an apocalyptic number.

1222122212002 is a deficient number, since it is larger than the sum of its proper divisors (611061106004).

1222122212002 is an equidigital number, since it uses as much as digits as its factorization.

1222122212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611061106003.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1222122212002 its reverse (2002122212221), we get a palindrome (3224244424223).

It can be divided in two parts, 122212221 and 2002, that multiplied together give a palindrome (244668866442).

The spelling of 1222122212002 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two".