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BaseRepresentation
bin111000111010101111…
…1010010110011000101
3102200111102201121222001
41301311133102303011
54000311414101041
6132052441505301
711554656513265
oct1616537226305
9380442647861
10122230222021
1147923856a16
121b8327a2231
13b6ac26aa7b
145cb760d7a5
1532a5b92131
hex1c757d2cc5

122230222021 has 2 divisors, whose sum is σ = 122230222022. Its totient is φ = 122230222020.

The previous prime is 122230222013. The next prime is 122230222027. The reversal of 122230222021 is 120222032221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109419377796 + 12810844225 = 330786^2 + 113185^2 .

It is a cyclic number.

It is not a de Polignac number, because 122230222021 - 23 = 122230222013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122230222021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122230222027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61115111010 + 61115111011.

It is an arithmetic number, because the mean of its divisors is an integer number (61115111011).

Almost surely, 2122230222021 is an apocalyptic number.

It is an amenable number.

122230222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122230222021 is an equidigital number, since it uses as much as digits as its factorization.

122230222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122230222021 its reverse (120222032221), we get a palindrome (242452254242).

The spelling of 122230222021 in words is "one hundred twenty-two billion, two hundred thirty million, two hundred twenty-two thousand, twenty-one".