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122021011020221 = 1318571086882263
BaseRepresentation
bin11011101111101000111011…
…000001000101100110111101
3121000001002120001120022011122
4123233220323001011212331
5111443143012310121341
61111303402325000325
734462504255336025
oct3357507301054675
9530032501508148
10122021011020221
1135974902704515
12118285a58530a5
1353116bb963b91
14221bbc41c0a85
15e190a700a94b
hex6efa3b0459bd

122021011020221 has 8 divisors (see below), whose sum is σ = 123095937691584. Its totient is φ = 120948258115360.

The previous prime is 122021011020197. The next prime is 122021011020253. The reversal of 122021011020221 is 122020110120221.

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 122021011020221 - 26 = 122021011020157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122021011020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021011050221) 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, 543328865 + ... + 543553398.

It is an arithmetic number, because the mean of its divisors is an integer number (15386992211448).

Almost surely, 2122021011020221 is an apocalyptic number.

It is an amenable number.

122021011020221 is a deficient number, since it is larger than the sum of its proper divisors (1074926671363).

122021011020221 is a wasteful number, since it uses less digits than its factorization.

122021011020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086883251.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021011020221 its reverse (122020110120221), we get a palindrome (244041121140442).

The spelling of 122021011020221 in words is "one hundred twenty-two trillion, twenty-one billion, eleven million, twenty thousand, two hundred twenty-one".

Divisors: 1 131 857 112267 1086882263 142381576453 931458099391 122021011020221