101121221221212 has 24 divisors (see below), whose sum is σ = 237807386392576. Its totient is φ = 33441663710448.

The previous prime is 101121221221201. The next prime is 101121221221277. The reversal of 101121221221212 is 212122122121101.

It is a super-2 number, since 2×101121221221212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33176252158 + ... + 33176255205.

Almost surely, 2^{101121221221212} is an apocalyptic number.

101121221221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101121221221212 is an abundant number, since it is smaller than the sum of its proper divisors (136686165171364).

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

101121221221212 is a wasteful number, since it uses less digits than its factorization.

101121221221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66352507497 (or 66352507495 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 101121221221212 its reverse (212122122121101), we get a palindrome (313243343342313).

The spelling of 101121221221212 in words is "one hundred one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".