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122203121021 = 4321113468877
BaseRepresentation
bin111000111001111011…
…1111010010101111101
3102200102112201202101022
41301303313322111331
54000232444333041
6132050032553525
711554210250522
oct1616367722575
9380375652338
10122203121021
114790a5265a3
121b8256b28a5
13b6a676c487
145cb3b97149
1532a35dc24b
hex1c73dfa57d

122203121021 has 8 divisors (see below), whose sum is σ = 125637693984. Its totient is φ = 118795486320.

The previous prime is 122203120987. The next prime is 122203121023. The reversal of 122203121021 is 120121302221.

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 122203121021 - 26 = 122203120957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122203121023) 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, 6725366 + ... + 6743511.

It is an arithmetic number, because the mean of its divisors is an integer number (15704711748).

Almost surely, 2122203121021 is an apocalyptic number.

It is an amenable number.

122203121021 is a deficient number, since it is larger than the sum of its proper divisors (3434572963).

122203121021 is a wasteful number, since it uses less digits than its factorization.

122203121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13469131.

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

Adding to 122203121021 its reverse (120121302221), we get a palindrome (242324423242).

The spelling of 122203121021 in words is "one hundred twenty-two billion, two hundred three million, one hundred twenty-one thousand, twenty-one".

Divisors: 1 43 211 9073 13468877 579161711 2841933047 122203121021