101022201221012 has 6 divisors (see below), whose sum is σ = 176788852136778. Its totient is φ = 50511100610504.

The previous prime is 101022201220979. The next prime is 101022201221017. The reversal of 101022201221012 is 210122102220101.

It can be written as a sum of positive squares in only one way, i.e., 67480080319876 + 33542120901136 = 8214626^2 + 5791556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022201221017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627775152623 + ... + 12627775152630.

It is an arithmetic number, because the mean of its divisors is an integer number (29464808689463).

Almost surely, 2^{101022201221012} is an apocalyptic number.

It is an amenable number.

101022201221012 is a deficient number, since it is larger than the sum of its proper divisors (75766650915766).

101022201221012 is a wasteful number, since it uses less digits than its factorization.

101022201221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255550305257 (or 25255550305255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101022201221012 its reverse (210122102220101), we get a palindrome (311144303441113).

The spelling of 101022201221012 in words is "one hundred one trillion, twenty-two billion, two hundred one million, two hundred twenty-one thousand, twelve".