101021200121012 has 6 divisors (see below), whose sum is σ = 176787100211778. Its totient is φ = 50510600060504.

The previous prime is 101021200121011. The next prime is 101021200121021. The reversal of 101021200121012 is 210121002120101.

It can be written as a sum of positive squares in only one way, i.e., 100689705149476 + 331494971536 = 10034426^2 + 575756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021200121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627650015123 + ... + 12627650015130.

It is an arithmetic number, because the mean of its divisors is an integer number (29464516701963).

Almost surely, 2^{101021200121012} is an apocalyptic number.

It is an amenable number.

101021200121012 is a deficient number, since it is larger than the sum of its proper divisors (75765900090766).

101021200121012 is a wasteful number, since it uses less digits than its factorization.

101021200121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255300030257 (or 25255300030255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101021200121012 its reverse (210121002120101), we get a palindrome (311142202241113).

The spelling of 101021200121012 in words is "one hundred one trillion, twenty-one billion, two hundred million, one hundred twenty-one thousand, twelve".