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122420444444 = 22291055348659
BaseRepresentation
bin111001000000011010…
…0111011110100011100
3102200222200122221001222
41302000310323310130
54001204113210234
6132123354552512
711562456415514
oct1620064736434
9380880587058
10122420444444
1147a11170931
121b886438738
13b70c7b080c
145cd49a8844
1532b771942e
hex1c80d3bd1c

122420444444 has 12 divisors (see below), whose sum is σ = 221623218600. Its totient is φ = 59099524848.

The previous prime is 122420444431. The next prime is 122420444449. The reversal of 122420444444 is 444444024221.

122420444444 is a modest number, since divided by 444444 gives 122420 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420444449) 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, 527674214 + ... + 527674445.

It is an arithmetic number, because the mean of its divisors is an integer number (18468601550).

Almost surely, 2122420444444 is an apocalyptic number.

It is an amenable number.

122420444444 is a deficient number, since it is larger than the sum of its proper divisors (99202774156).

122420444444 is a wasteful number, since it uses less digits than its factorization.

122420444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055348692 (or 1055348690 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 35.

Adding to 122420444444 its reverse (444444024221), we get a palindrome (566864468665).

The spelling of 122420444444 in words is "one hundred twenty-two billion, four hundred twenty million, four hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 29 58 116 1055348659 2110697318 4221394636 30605111111 61210222222 122420444444