Search a number
-
+
122022412421 = 7132791305653
BaseRepresentation
bin111000110100100011…
…0100100000010000101
3102122221221200210210012
41301221012210002011
53444400214144141
6132020055440005
711546554251350
oct1615106440205
9378857623705
10122022412421
114782751a548
121b795086005
13b6781aac00
145c97b97297
1532927e3ceb
hex1c691a4085

122022412421 has 24 divisors (see below), whose sum is σ = 152918196480. Its totient is φ = 95323041216.

The previous prime is 122022412411. The next prime is 122022412423. The reversal of 122022412421 is 124214220221.

It is not a de Polignac number, because 122022412421 - 218 = 122022150277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122022412423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559370 + ... + 746283.

It is an arithmetic number, because the mean of its divisors is an integer number (6371591520).

Almost surely, 2122022412421 is an apocalyptic number.

It is an amenable number.

122022412421 is a deficient number, since it is larger than the sum of its proper divisors (30895784059).

122022412421 is a wasteful number, since it uses less digits than its factorization.

122022412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305765 (or 1305752 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 122022412421 its reverse (124214220221), we get a palindrome (246236632642).

The spelling of 122022412421 in words is "one hundred twenty-two billion, twenty-two million, four hundred twelve thousand, four hundred twenty-one".

Divisors: 1 7 13 79 91 169 553 1027 1183 7189 13351 93457 1305653 9139571 16973489 103146587 118814423 220655357 722026109 1340905631 1544587499 9386339417 17431773203 122022412421