100020101220122 has 4 divisors (see below), whose sum is σ = 150030151830186. Its totient is φ = 50010050610060.

The previous prime is 100020101220059. The next prime is 100020101220191. The reversal of 100020101220122 is 221022101020001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52599786110041 + 47420315110081 = 7252571^2 + 6886241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100020101220097 and 100020101220106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005025305029 + ... + 25005025305032.

Almost surely, 2^{100020101220122} is an apocalyptic number.

100020101220122 is a deficient number, since it is larger than the sum of its proper divisors (50010050610064).

100020101220122 is an equidigital number, since it uses as much as digits as its factorization.

100020101220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50010050610063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100020101220122 its reverse (221022101020001), we get a palindrome (321042202240123).

The spelling of 100020101220122 in words is "one hundred trillion, twenty billion, one hundred one million, two hundred twenty thousand, one hundred twenty-two".