11211021012212 has 36 divisors (see below), whose sum is σ = 22917927090240. Its totient is φ = 4784619826224.

The previous prime is 11211021012211. The next prime is 11211021012239. The reversal of 11211021012212 is 21221012011211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211021012211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119616518 + ... + 119710205.

It is an arithmetic number, because the mean of its divisors is an integer number (636609085840).

Almost surely, 2^{11211021012212} is an apocalyptic number.

It is an amenable number.

11211021012212 is an abundant number, since it is smaller than the sum of its proper divisors (11706906078028).

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

11211021012212 is a wasteful number, since it uses less digits than its factorization.

11211021012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239326980 (or 239326971 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11211021012212 its reverse (21221012011211), we get a palindrome (32432033023423).

The spelling of 11211021012212 in words is "eleven trillion, two hundred eleven billion, twenty-one million, twelve thousand, two hundred twelve".