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230122222121 = 1120920202011
BaseRepresentation
bin1101011001010001011…
…0100111001000101001
3210222222121120010002202
43112110112213020221
512232242242101441
6253414445505545
722424433420401
oct3262426471051
9728877503082
10230122222121
1189659aa4550
12387235722b5
1318914b0874c
14b1d0863801
155ebcb9219b
hex35945a7229

230122222121 has 4 divisors (see below), whose sum is σ = 251042424144. Its totient is φ = 209202020100.

The previous prime is 230122222103. The next prime is 230122222147. The reversal of 230122222121 is 121222221032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230122222121 - 222 = 230118027817 is a prime.

It is a super-2 number, since 2×2301222221212 (a number of 24 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 = 230122222093 and 230122222102.

It is not an unprimeable number, because it can be changed into a prime (230122222181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10460100995 + ... + 10460101016.

It is an arithmetic number, because the mean of its divisors is an integer number (62760606036).

Almost surely, 2230122222121 is an apocalyptic number.

It is an amenable number.

230122222121 is a deficient number, since it is larger than the sum of its proper divisors (20920202023).

230122222121 is a wasteful number, since it uses less digits than its factorization.

230122222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20920202022.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 230122222121 its reverse (121222221032), we get a palindrome (351344443153).

The spelling of 230122222121 in words is "two hundred thirty billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 11 20920202011 230122222121