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122152164220 = 2256107608211
BaseRepresentation
bin111000111000011010…
…1100001101101111100
3102200021222211212210101
41301300311201231330
54000131423223340
6132041012450444
711553021156442
oct1616065415574
9380258755711
10122152164220
1147893791a39
121b810619a24
13b69903a718
145cab0d0b92
15329ddc3c9a
hex1c70d61b7c

122152164220 has 12 divisors (see below), whose sum is σ = 256519544904. Its totient is φ = 48860865680.

The previous prime is 122152164217. The next prime is 122152164223. The reversal of 122152164220 is 22461251221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122152164217) and next prime (122152164223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122152164223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053804086 + ... + 3053804125.

It is an arithmetic number, because the mean of its divisors is an integer number (21376628742).

Almost surely, 2122152164220 is an apocalyptic number.

122152164220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122152164220 is an abundant number, since it is smaller than the sum of its proper divisors (134367380684).

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

122152164220 is a wasteful number, since it uses less digits than its factorization.

122152164220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107608220 (or 6107608218 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 122152164220 in words is "one hundred twenty-two billion, one hundred fifty-two million, one hundred sixty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6107608211 12215216422 24430432844 30538041055 61076082110 122152164220