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122200011020 = 2256110000551
BaseRepresentation
bin111000111001110110…
…0000011000100001100
3102200102022212202021002
41301303230003010030
54000231200323040
6132045442155432
711554141645463
oct1616354030414
9380368782232
10122200011020
11479087a1a4a
121b824652b78
13b6a5c20a39
145cb35c79da
1532a31c5a15
hex1c73b0310c

122200011020 has 12 divisors (see below), whose sum is σ = 256620023184. Its totient is φ = 48880004400.

The previous prime is 122200011019. The next prime is 122200011091. The reversal of 122200011020 is 20110002221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122200010992 and 122200011010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055000256 + ... + 3055000295.

It is an arithmetic number, because the mean of its divisors is an integer number (21385001932).

Almost surely, 2122200011020 is an apocalyptic number.

122200011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122200011020 is an abundant number, since it is smaller than the sum of its proper divisors (134420012164).

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

122200011020 is a wasteful number, since it uses less digits than its factorization.

122200011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110000560 (or 6110000558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122200011020 its reverse (20110002221), we get a palindrome (142310013241).

The spelling of 122200011020 in words is "one hundred twenty-two billion, two hundred million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 6110000551 12220001102 24440002204 30550002755 61100005510 122200011020