101221101100012 has 12 divisors (see below), whose sum is σ = 177137617499640. Its totient is φ = 50610353242976.

The previous prime is 101221101099991. The next prime is 101221101100061. The reversal of 101221101100012 is 210001101122101.

It is a happy number.

It is a super-2 number, since 2×101221101100012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101221101099965 and 101221101100001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48169462 + ... + 50226877.

It is an arithmetic number, because the mean of its divisors is an integer number (14761468124970).

Almost surely, 2^{101221101100012} is an apocalyptic number.

It is an amenable number.

101221101100012 is a deficient number, since it is larger than the sum of its proper divisors (75916516399628).

101221101100012 is a wasteful number, since it uses less digits than its factorization.

101221101100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98653520 (or 98653518 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101221101100012 its reverse (210001101122101), we get a palindrome (311222202222113).

The spelling of 101221101100012 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred one million, one hundred thousand, twelve".