101121023221 has 16 divisors (see below), whose sum is σ = 109978951680. Its totient is φ = 92695466160.

The previous prime is 101121023189. The next prime is 101121023243. The reversal of 101121023221 is 122320121101.

It is a cyclic number.

It is not a de Polignac number, because 101121023221 - 2⁵ = 101121023189 is a prime.

It is a super-2 number, since 2×101121023221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101121023195 and 101121023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121063221) 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, 615031 + ... + 761908.

It is an arithmetic number, because the mean of its divisors is an integer number (6873684480).

Almost surely, 2^101121023221 is an apocalyptic number.

It is an amenable number.

101121023221 is a deficient number, since it is larger than the sum of its proper divisors (8857928459).

101121023221 is a wasteful number, since it uses less digits than its factorization.

101121023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377096.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101121023221 its reverse (122320121101), we get a palindrome (223441144322).

The spelling of 101121023221 in words is "one hundred one billion, one hundred twenty-one million, twenty-three thousand, two hundred twenty-one".