101221011121012 has 24 divisors (see below), whose sum is σ = 192889404136800. Its totient is φ = 46293456990816.

The previous prime is 101221011121001. The next prime is 101221011121091. The reversal of 101221011121012 is 210121110122101.

It is a super-3 number, since 3×101221011121012³ (a number of 43 digits) contains 333 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, 22963022098 + ... + 22963026505.

It is an arithmetic number, because the mean of its divisors is an integer number (8037058505700).

Almost surely, 2^{101221011121012} is an apocalyptic number.

It is an amenable number.

101221011121012 is a deficient number, since it is larger than the sum of its proper divisors (91668393015788).

101221011121012 is a wasteful number, since it uses less digits than its factorization.

101221011121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45926048655 (or 45926048653 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 101221011121012 its reverse (210121110122101), we get a palindrome (311342121243113).

The spelling of 101221011121012 in words is "one hundred one trillion, two hundred twenty-one billion, eleven million, one hundred twenty-one thousand, twelve".