100021010121092 has 6 divisors (see below), whose sum is σ = 175036767711918. Its totient is φ = 50010505060544.

The previous prime is 100021010121091. The next prime is 100021010121103. The reversal of 100021010121092 is 290121010120001.

It can be written as a sum of positive squares in only one way, i.e., 92017859648836 + 8003150472256 = 9592594^2 + 2828984^2 .

It is not an unprimeable number, because it can be changed into a prime (100021010121091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502626265133 + ... + 12502626265140.

It is an arithmetic number, because the mean of its divisors is an integer number (29172794618653).

Almost surely, 2^{100021010121092} is an apocalyptic number.

It is an amenable number.

100021010121092 is a deficient number, since it is larger than the sum of its proper divisors (75015757590826).

100021010121092 is a wasteful number, since it uses less digits than its factorization.

100021010121092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25005252530277 (or 25005252530275 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 100021010121092 its reverse (290121010120001), we get a palindrome (390142020241093).

The spelling of 100021010121092 in words is "one hundred trillion, twenty-one billion, ten million, one hundred twenty-one thousand, ninety-two".