1001111220212 has 48 divisors (see below), whose sum is σ = 1798229486592. Its totient is φ = 487405158240.

The previous prime is 1001111220121. The next prime is 1001111220247. The reversal of 1001111220212 is 2120221111001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112898603 + ... + 112907469.

It is an arithmetic number, because the mean of its divisors is an integer number (37463114304).

Almost surely, 2^{1001111220212} is an apocalyptic number.

It is an amenable number.

1001111220212 is a deficient number, since it is larger than the sum of its proper divisors (797118266380).

1001111220212 is a wasteful number, since it uses less digits than its factorization.

1001111220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868 (or 10866 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001111220212 its reverse (2120221111001), we get a palindrome (3121332331213).

The spelling of 1001111220212 in words is "one trillion, one billion, one hundred eleven million, two hundred twenty thousand, two hundred twelve".