1101212221002 has 16 divisors (see below), whose sum is σ = 2202572049120. Its totient is φ = 367046139152.

The previous prime is 1101212220989. The next prime is 1101212221013. The reversal of 1101212221002 is 2001222121011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6053193 + ... + 6232460.

It is an arithmetic number, because the mean of its divisors is an integer number (137660753070).

Almost surely, 2^{1101212221002} is an apocalyptic number.

1101212221002 is an abundant number, since it is smaller than the sum of its proper divisors (1101359828118).

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

1101212221002 is a wasteful number, since it uses less digits than its factorization.

1101212221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12300597.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1101212221002 its reverse (2001222121011), we get a palindrome (3102434342013).

Subtracting 1101212221002 from its reverse (2001222121011), we obtain a palindrome (900009900009).

The spelling of 1101212221002 in words is "one trillion, one hundred one billion, two hundred twelve million, two hundred twenty-one thousand, two".