101220221123 has 8 divisors (see below), whose sum is σ = 117406824192. Its totient is φ = 85465260936.

The previous prime is 101220221057. The next prime is 101220221173. The reversal of 101220221123 is 321122022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101220221123 - 2⁸ = 101220220867 is a prime.

It is a super-2 number, since 2×101220221123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101220221173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107910215 + ... + 107911152.

It is an arithmetic number, because the mean of its divisors is an integer number (14675853024).

Almost surely, 2^101220221123 is an apocalyptic number.

101220221123 is a deficient number, since it is larger than the sum of its proper divisors (16186603069).

101220221123 is an equidigital number, since it uses as much as digits as its factorization.

101220221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215821441.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101220221123 its reverse (321122022101), we get a palindrome (422342243224).

The spelling of 101220221123 in words is "one hundred one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty-three".