121011220212 has 48 divisors (see below), whose sum is σ = 285439160832. Its totient is φ = 39899472480.

The previous prime is 121011220201. The next prime is 121011220217. The reversal of 121011220212 is 212022110121.

It is a junction number, because it is equal to n+sod(n) for n = 121011220191 and 121011220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011220217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266113 + ... + 559319.

It is an arithmetic number, because the mean of its divisors is an integer number (5946649184).

Almost surely, 2^121011220212 is an apocalyptic number.

121011220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121011220212 is an abundant number, since it is smaller than the sum of its proper divisors (164427940620).

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

121011220212 is a wasteful number, since it uses less digits than its factorization.

121011220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293588 (or 293586 counting only the distinct ones).

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

Adding to 121011220212 its reverse (212022110121), we get a palindrome (333033330333).

The spelling of 121011220212 in words is "one hundred twenty-one billion, eleven million, two hundred twenty thousand, two hundred twelve".