100121223047 has 2 divisors, whose sum is σ = 100121223048. Its totient is φ = 100121223046.

The previous prime is 100121223017. The next prime is 100121223061. The reversal of 100121223047 is 740322121001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100121223047 - 2²⁶ = 100054114183 is a prime.

It is a super-4 number, since 4×100121223047⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121223017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060611523 + 50060611524.

It is an arithmetic number, because the mean of its divisors is an integer number (50060611524).

Almost surely, 2^100121223047 is an apocalyptic number.

100121223047 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121223047 is an equidigital number, since it uses as much as digits as its factorization.

100121223047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 100121223047 its reverse (740322121001), we get a palindrome (840443344048).

The spelling of 100121223047 in words is "one hundred billion, one hundred twenty-one million, two hundred twenty-three thousand, forty-seven".