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122021042412 = 22313049779249
BaseRepresentation
bin111000110100100000…
…1010101100011101100
3102122221212010012111010
41301221001111203230
53444344341324122
6132020010225220
711546536514223
oct1615101254354
9378855105433
10122021042412
1147826774205
121b794725210
13b677b1b459
145c9791bcba
153292622e0c
hex1c690558ec

122021042412 has 24 divisors (see below), whose sum is σ = 284737950000. Its totient is φ = 40670511616.

The previous prime is 122021042371. The next prime is 122021042441. The reversal of 122021042412 is 214240120221.

It is a super-2 number, since 2×1220210424122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233037 + ... + 546212.

It is an arithmetic number, because the mean of its divisors is an integer number (11864081250).

Almost surely, 2122021042412 is an apocalyptic number.

122021042412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122021042412 is an abundant number, since it is smaller than the sum of its proper divisors (162716907588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122021042412 is a wasteful number, since it uses less digits than its factorization.

122021042412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792305 (or 792303 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 122021042412 its reverse (214240120221), we get a palindrome (336261162633).

The spelling of 122021042412 in words is "one hundred twenty-two billion, twenty-one million, forty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13049 26098 39147 52196 78294 156588 779249 1558498 2337747 3116996 4675494 9350988 10168420201 20336840402 30505260603 40673680804 61010521206 122021042412