1121210220212 has 24 divisors (see below), whose sum is σ = 2095041955776. Its totient is φ = 523760485248.

The previous prime is 1121210220197. The next prime is 1121210220259. The reversal of 1121210220212 is 2120220121211.

It is a super-2 number, since 2×1121210220212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 141706133 + ... + 141714044.

It is an arithmetic number, because the mean of its divisors is an integer number (87293414824).

Almost surely, 2^{1121210220212} is an apocalyptic number.

It is an amenable number.

1121210220212 is a deficient number, since it is larger than the sum of its proper divisors (973831735564).

1121210220212 is a wasteful number, since it uses less digits than its factorization.

1121210220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283420247 (or 283420245 counting only the distinct ones).

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

Adding to 1121210220212 its reverse (2120220121211), we get a palindrome (3241430341423).

Subtracting 1121210220212 from its reverse (2120220121211), we obtain a palindrome (999009900999).

The spelling of 1121210220212 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty thousand, two hundred twelve".