101020221212123 has 2 divisors, whose sum is σ = 101020221212124. Its totient is φ = 101020221212122.

The previous prime is 101020221212077. The next prime is 101020221212173. The reversal of 101020221212123 is 321212122020101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101020221212123 - 2¹⁶ = 101020221146587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101020221212095 and 101020221212104.

It is not a weakly prime, because it can be changed into another prime (101020221212173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510110606061 + 50510110606062.

It is an arithmetic number, because the mean of its divisors is an integer number (50510110606062).

Almost surely, 2^{101020221212123} is an apocalyptic number.

101020221212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020221212123 is an equidigital number, since it uses as much as digits as its factorization.

101020221212123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 101020221212123 its reverse (321212122020101), we get a palindrome (422232343232224).

The spelling of 101020221212123 in words is "one hundred one trillion, twenty billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twenty-three".