101221430345 has 16 divisors (see below), whose sum is σ = 146983724928. Its totient is φ = 65326099200.

The previous prime is 101221430341. The next prime is 101221430347. The reversal of 101221430345 is 543034122101.

It is a happy number.

It is not a de Polignac number, because 101221430345 - 2² = 101221430341 is a prime.

It is a super-2 number, since 2×101221430345² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221430341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85059431 + ... + 85060620.

It is an arithmetic number, because the mean of its divisors is an integer number (9186482808).

Almost surely, 2^101221430345 is an apocalyptic number.

It is an amenable number.

101221430345 is a deficient number, since it is larger than the sum of its proper divisors (45762294583).

101221430345 is a wasteful number, since it uses less digits than its factorization.

101221430345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170120080.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 101221430345 its reverse (543034122101), we get a palindrome (644255552446).

The spelling of 101221430345 in words is "one hundred one billion, two hundred twenty-one million, four hundred thirty thousand, three hundred forty-five".