101211221120012 has 24 divisors (see below), whose sum is σ = 180888708155904. Its totient is φ = 49528739840912.

The previous prime is 101211221119993. The next prime is 101211221120029. The reversal of 101211221120012 is 210021122112101.

It is a super-2 number, since 2×101211221120012² (a number of 29 digits) contains 22 as substring.

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, 79305863 + ... + 80571969.

It is an arithmetic number, because the mean of its divisors is an integer number (7537029506496).

Almost surely, 2^{101211221120012} is an apocalyptic number.

It is an amenable number.

101211221120012 is a deficient number, since it is larger than the sum of its proper divisors (79677487035892).

101211221120012 is a wasteful number, since it uses less digits than its factorization.

101211221120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691365 (or 1691363 counting only the distinct ones).

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

Adding to 101211221120012 its reverse (210021122112101), we get a palindrome (311232343232113).

The spelling of 101211221120012 in words is "one hundred one trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twenty thousand, twelve".